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Journal articles on the topic 'Pest repellant'
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A. Julisma M, Jamaluddin, and Fatahillah. "Microcontroller Based Bird Pest Repellant Modifications Using A Pir Sensor." PATANI (Pengembangan Teknologi Pertanian dan Informatika) 6, no. 2 (2023): 22–25. http://dx.doi.org/10.47767/patani.v6i2.544.
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Hama yaitu seluruh hewan yang merugikan pertanian dan organisme pengganggu tanaman yang merusak secara fisik, contohnya seperti burung. Hama burung bisa memakan padi hingga rata-rata sejumlah 5 g perhari. Penelitian ini bertujuan untuk memoifikasi dan mengetahui kinerja alat pengusir hama burung berbasis mikrokontroler menggunakan sensor pir (passive infra red). Pembuatan alat ini meliuti beberapa tahaan yaitu studi pustaka, identifikasi sistem, merancang alat dan sistem kontrol, pengujian fungsional, pengujian lapangan dan analisis data. Mikrokontroler arduino uno sebagai pengendali alat, akumulator sebagai sumber daya, sensor PIR sebagai sensor pendeteksi serta motor servo sebagai penggerak. Berdasarkan hasil pengujian jarak deteksi alat diketahui bahwa jarak rata-rata jangkauan sensor hanya 4 m. Ini dikarenakan sebab penggunaan sensor kadangkala kurang dapat mendeteksi keberadaan burung yang jumlahnya 1 ekor dan area lahan memiliki cakupan yang luas.
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Puu, Yustina Maria Silvia Wonga. "UJI EFEKTIVITAS EKSTRAK KULIT BATANG PULAI (Alstonia scolaris) TERHADAP HAMA Plutella xylostella." AGRICA 7, no. 1 (2020): 34–44. http://dx.doi.org/10.37478/agr.v7i1.401.
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The aim of this study is to find out the effectiveness and concentration of Pulai stem extract (Alstoniascolaris) upon the pest of Plutellaxylostella. This study was conducted in the Laboratory of Agriculture Faculty of Flores University in Ende. A completely random design was employed with five treatments, namely J0 (aquades), J1 (75 ml of Pulai stem extract concentration), J2 (100ml of Pulai stem extract concentration), J3 (125ml of Pulai stem extract concentration), J4 (150ml of Pulai stem extract concentration).The result of study reveals that extract of PulaiAlstoniascolaris stem was influential to the development of Plutellaxylostella pest in contact poison of J0 7,50%, J1 60,00%, J2 67,50%, J3 67,50% and J4 80,00%, while for repellant activity of J0 80,00%, J1 57,50%, J2 22,50%, J3 15,00%, and J4 15,00%, for belly poison of J0 00,00%, J1 57,50%, J2 72,50%, J3 75,00% and J4 80,00%. Extract of Pulai stem is the right plant which is effective to highest mortality of Plutellaxylostellapest, belly poison on80,00% of J4 treatment, repellant activity on 15% of J4 treatment, and contact poison on 70% of J4 treatment.
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Abhishek, Kumar Verma. "VIRTUAL SCREENING, MOLECULAR DOCKING, AND ADME/T PROPERTIES ANALYSIS OF REPELLENT EFFICACY OF NATURAL COMPOUNDS ON DERMESTES MACULATUS OF PROTOPTERUS ANNECTENS." International Journal of Zoology and Applied Biosciences 5, no. 6 (2020): 255–63. https://doi.org/10.5281/zenodo.4279676.
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Dermestes maculatus is a very important pest of smoke-dried fish that destroys the flesh, eating away the muscles, and leaving the skeletons when cured fish are stored for long period. This necessitates the idea of establishing an alternative repellant from natural plant products. In this article, compounds of Capsicum annum will be studied against repellent protein NDS2 of D. maculatus. The compounds present in C. annum. were docked against The NADH dehydrogenase subunit 2 (NDS2) protein of D. maculatus. PyRx-Python prescription 0.8 was used to identify binding affinities of compounds against the proteins. The results we obtained from molecular docking show that among 48 molecules of natural origin from C. annuum was downloaded in SDF format from the NCBI PubChem database. Six molecules are the best compounds observed through molecular docking and some hydrogen bonding and hydrophobic interactions are proposed as the efficacy from C. annuum on a repellent protein of D. maculatus. The molecular docking was performed to establish efficacy and binding affinity of ligands from C. annum on the repellent protein of D. maculatus. ADMET analysis is performed to establish the possible toxicity of the ligands. Importantly, all six natural compounds present in C. annum. may be more potent in new insecticide against NSD2 in D. maculatus but needs further experimental research.
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B., P. Siriwardena, Subasinghe S., and P. Vidanapathirana N. "Study the Pest Repellant Action of Abelmoschus esculentus (Okra) and Solanum melongena (Egg-Plant) as Affected by Application of Different Concentration of Wood Vinegar / Pyroligneous Acid Produced by Using Different Wood Species." International Journal of Research and Review 6, no. 3 (2019): 137–40. https://doi.org/10.5281/zenodo.3987928.
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Natural extracts like pyroligneous acid (wood vinegar) is evaluated for pest repellant action of Abelmoschus esculentus and Solanum melongena. Wood species as Gliricidia sepium, Cinnamomum zeylanicum, Acacia leucopholea, and Azadirachta indica used for preparation of pyroligneous acids from different concentrations such as 0%, 0.25%, 0.50%, 0.75%, 1.0% for the experiment. Pyroligneous acid applied as foliar spray with one week intervals when the plant is having four to five leaves per each plant. Pyroligneous acids from different wood species were not significant but Azadirachta indica wood species showed lower mean values of pest attacks as 1st week 1.05 ± 0.11 , 2nd week 2.05 ± 0.16 , 3rd week 2.75 ± 0.18 and 4th week 3.25 ± 0.17 for the Abelmoschus esculentus plant. Pyroligneous acids from different concentrations were significant except the 1st week. Mean values for the pest attacks explain as 1st week 0.81 ± 0.03, 2nd week 1.50 ± 0.07, 3rd week 2.12 ± 0.09 and 4th week 2.31 ± 0.11 for the Abelmoschus esculentus plant. Interaction effect was not significant in all weeks. Also for the Solanum melongena, pyroligneous acids from different wood species were not significant but the pyroligneous acids from Azadirachta indica wood species were having lower mean value of pest attacks. It can described as 1st week 0.70 ± 0.10, 2nd week 1.50 ± 0.12, 3rd week 2.05 ± 0.16 and 4th week 2.40 ± 0.17. Solanum melongena plants also showed same actions for the different concentrations of pyroligneous acids were significant.
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Pradhan, Debasis, and Divya Agrawal. "Mortein: Finalizing the Theme and Creative Idea." Asian Case Research Journal 17, no. 02 (2013): 359–81. http://dx.doi.org/10.1142/s0218927513500168.
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Mortein, one of the top pest repellant brands in India, was facing a stagnant market share for the past three years. Although the brand in itself stood for “power”, consumers did not perceive the vaporizer to have the same power as competitors' products. Deepak Sinha, the brand manager for Mortein, had formulated a business strategy to capture share from competition through a brand relaunch with an improved and more effective product, Mortein PowerGard. Deepak had come up with the proposal for a 360-degree activation for Mortein. Deepak had to approve the advertising copy designed and developed by a management trainee. He wanted to be doubly-sure about the target audience for the communication campaign and the decision-making units for the purchase of a mosquito repellent. There was a debate on this at Reckitt-Benckiser (hereafter referred to as RB). He wanted to be scientific about decisions like target audience selection and the appropriateness of the message strategy which was also part of the copy strategy. Deepak and the trainee had to convince the top management at RB on certain decisions that were taken and some others that were being contemplated upon.
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Rani, S., and A. Goel. "Evaluation of pest repellant finish of jute fabric microencapsulated with Azadirachta indica : A sustainable agrotech." Journal of Community Mobilization and Sustainable Development 19, no. 2 (2024): 532–35. http://dx.doi.org/10.5958/2231-6736.2024.00138.8.
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Komen, Ednah, Lucy K. Murungi, and Janet Irungu. "Behavioral response of the small hive beetle, Aethina tumida (Coleoptera: Nitidulidae) to volatiles of Apicure®, a plant-based extract." AAS Open Research 2 (February 25, 2019): 9. http://dx.doi.org/10.12688/aasopenres.12946.1.
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Background: The small hive beetle (SHB), Aethina tumida is an invasive pest of the honey bee. Although no previous methods have led to its successful management, yeast inoculated pollen baited-traps have showed promise as quick monitoring tools. In this study, we evaluated the role of olfaction in SHB response to Apicure®, an essential oil-based biopesticide that has shown potential for the management of honey bee pests and diseases. Methods: Volatiles from Apicure® were collected using super Q adsorbent traps. Subsequent analysis was done using Gas chromatography- mass spectrophotometry (GC-MS) to ascertain the components of Apicure®. The selectivity and sensitivity of antennal receptors of A. tumida adults to the volatile compounds were determined using behavioral assays and Gas Chromatography-Electroantennodetection (GC-EAD). Results: GC-MS analysis showed that Apicure® consists of 40 compounds. GC-EAD analysis isolated 11 compounds that elicited antennal response with the SHB. Of these, linalool, camphor, geraniol and α-terpineol were confirmed to be strongly repellant, while limonene was attractive to SHB in dual-choice olfactometer assays. Conclusion: Our results demonstrate that the major components in Apicure® are mainly repellants thus prospective in disrupting the host recognition by the SHB. The product therefore can be up-scaled for the management of SHB.
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Haris, Hartini, and Yustina Maria Silvia Wonga Puu. "UJI AKTIVITAS EKSTRAK DAUN MBOA (Melastomata malabatricum) TERHADAP HAMA GUDANG Callosobruchus sp (COLEOPTERA:BRUCHIDAE) PADA KACANG HIJAU (Phaseolus radiata L.)." AGRICA 3, no. 2 (2020): 99–110. http://dx.doi.org/10.37478/agr.v3i2.498.
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Activity Test Extract Mboa Leaf (Melastomata Malabatrikum) against warehouse pest Callosobruchus Sp (Coleoptera : Bruchidae) Green bean (Phaseolus Radiata L.). Green beans are an important crop in the tropics and have long cultivated in Indonesia. Green bean production in quantity and quality is strongly influenced by the presence of pest and diseases. The damage caused by insects ensued can reach 70% (Kartasapoetra, 1987). Given the magnitude percentage damage inflicted by insects CallosobbrushusSp is a necessary control measure. This study aims to determine the activity of leaf extract Mboa (M. Mallabatricum) against warehouse pest Callosobruchus Sp. This study uses a CDR with four treatments (M25, M50, M75, M100) and repeated 10 times. The result showed extra activity Mboa leaves (M. Mallabatricum) against Callosobruchus Sp to test a contact poison can cause Callosobruchus Sp morality above 80% seen in the treatment of M50, M75, and M100 of 9.987%. repellant test showed a decrease traffic to continue successive treatment – participated in treatments M25 (61%), M50 (46%), M75 (43%), M100(34%) and mortality due to neurological disorders for M25 (7.34%), M50 (7.99%), M75 (8.54%), and M100 (9.21%). An antibody test can suppress high levels of oviposition in each treatment. M25 (31.21%), M50 (71.01%), M75(79.5%), and M100 (87.22%).
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Tilekar, Gauri J. "Effectiveness of Plant-based Repellents against different Anopheles Species: a Systematic Review." International Journal for Research in Applied Science and Engineering Technology 12, no. 1 (2024): 1223–28. http://dx.doi.org/10.22214/ijraset.2024.58140.
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Abstract: The deadliest pest that humans are aware of is the mosquito. One of the best ways to lower sickness is to avoid mosquito bites. In daily life, we utilize a variety of synthetic mosquito repellents; nevertheless, prolonged use of these repellents can pose health and environmental risks. Many plants have been utilized as fumigants, insecticidal agents, and repellents since ancient times. The majority of plants include phytochemicals that act as insect repellent, shielding them from numerous insect attacks. The study presented in this paper aims to create herbal insect repellent formulations that are both safe and effective. Insecticides used in the past included neem oil, camphor, orange peel powder, and orange seeds. There are numerous applications for the dehydrated peels of citrus fruits in pest management. An effective repellent is orange oil, which is derived from orange peels. Linalool, a widely used flavouring agent and ingredient in perfumes, exhibits insect repellent qualities in addition to its olfactory qualities. Furthermore, it has been included into flammable items and topical therapies. It can be used in place of synthetic repellent because it has little risk of negative effects and benefits human health. The purpose of our study is to look into the phytochemical extracts from herbal products' repelling properties.
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Pugazhvendan, S. R., P. Ronald Ross, and K. Elumalai. "Insecticidal and repellant activities of plants oil against stored grain pest, Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae)." Asian Pacific Journal of Tropical Disease 2 (January 2012): S412—S415. http://dx.doi.org/10.1016/s2222-1808(12)60193-5.
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Minarni, Endang Warih, Loekas Soesanto, Agus Suyanto, and Rostaman Rostaman. "Effectiveness of Secondary Metabolites from Entomopathogenic Fungi for Control Nilaparvata lugens Stål. in the Laboratory Scale." Jurnal Perlindungan Tanaman Indonesia 25, no. 1 (2021): 86. http://dx.doi.org/10.22146/jpti.62116.
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Nilaparvata lugens Stål. is an essential pest in rice plants. This pest attack can reduce crop yields and even crop failure. This research was conducted to obtain secondary metabolites that are effective in controlling brown planthopper (BPH). A randomized block design was used to test the effectiveness of secondary metabolites against BPH. The treatments tested were secondary metabolites produced by eight isolates of fungi consist of three concentrations: 5, 10, and 15%. Water and imidacloprid insecticide were used as control. The eight isolates were: J11 (Aspergillus sp.), J22 (Lecanicillium saksenae), J34 (Myrothecium sp.), J35 (Beauveria sp.), J41 (Fusarium sp.), J56 (Fusarium sp), J60 (Simplicillium sp.), and J65 (Curvularia sp.). Each treatment was repeated three times. The variables observed were mortality and time of death of BPH. Data were analyzed using the F test and followed by a DMRT if significant differences existed. The results showed that the secondary metabolites of the Lecanicillium saksenae, Myrothecium sp., and Simplicillium sp. fungi effectively controlled BPH pests by 80‒100% within 3.22‒5.47 days. The fungus L. saksenae, Myrothecium sp., and Simplicillium sp. contain insecticidal compounds, clogging the insect spiraculum, antifeedant, repellant, and antimicrobial.
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O. Manalo, Mercy. "Ethnological Pest Management Practices of Indigenous People (Aeta/ Negrito/Ita) in Catanuan, Quezon." International Multidisciplinary Research Journal 1, no. 1 (2019): 143–52. http://dx.doi.org/10.54476/iimrj419.
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In the Philippines, there are more than 110 culturally diverse ethnic tribes and communities. As clearly stated in the 1987 Philippine Constitution, Article XIV, Section 17, the state shall recognize, respect, and protect the rights of the indigenous cultural communities to preserve and develop their cultures, traditions, and institutions. The Aeta, Agta or Ayta are indigenous people who live in scattered, isolated mountainous parts of Barangay San Jose (Anyao), Catanauan, Quezon. The researcher conducted an ethnological study to document the Indigenous People integrated pest management practices employing the descriptive survey method. Based on the result, 80% were still practicing the traditional way of managing the pest without harming the human and environment. The Aeta farmers leave the infected crops, manually pick burn or use smoke to eliminate the pest.Moreover, the farmers also practice crop rotation, mixed cropping, and properly manage the farm. Crop loss due to pests was one of the major problems resulting from reducing production and income. The chemical control of pests was predominant, but the Aeta farmers still practiced traditional pest control. The conventional pest control practices played a significant role in the management of agricultural land, and it was an inevitable practice for sustainable agriculture. The proper control of pests minimized economic losses and damage to the environment. Some of the respondents have insufficient skills and knowledge on the ethnological way of controlling pest and diseases using insect repellant like marigold or Amarillo, lemongrass or tanlad, oregano, and by spraying wild chili mixed with water. Based on the result, it was recommended to conduct seminars and workshops on Organic Agriculture as well as an awareness campaign on the effect of chemical fertilizer to human and environment
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Strang, Tom, and Jeremy Jacobs. "Seeing is Believing, A Fourteen-Year Study on Efficacy and Economics of Visual Inspections to Protect A Large Mammal Collection from Insect Pests." Collection Forum 32, no. 1 (2018): 59–90. http://dx.doi.org/10.14351/0831-4985-32.1.59.
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Abstract In response to the cessation of use of in-case fumigants, from 1995–2009 the Smithsonian Institution, National Museum of Natural History's Division of Mammals (DOM) applied a consistent voluntary visual inspection protocol over a period of 14 years. On average, per-case inspections required about 7 minutes. Inspections categorized case pest activity as clean, soiled, signs of life, and live insects. These categories compartmentalized levels of uncertainty about pest activity and directly led to remedial treatment and cleaning actions performed at a case level. Evidence of recurrent reinfestation led to case renovation or replacement. In order for an integrated pest management (IPM) method to be successful, it has to demonstrate a predatory efficacy better than the replacement and recruitment rates of the pests. With at most 1.5% of staff time devoted to IPM, case infestations of Thylodrias contractus (Motschulsky 1839) Coleoptera: Dermestidae and Necrobia rufipes (De Geer 1775) Coleoptera: Cleridae were lowered to near zero within 3 years. Rebound toward initial rates occurred after a forced 3-year hiatus in inspections and was similarly dealt with by a following round of inspections. The hourly investment of time is comparable with that of previous case repellant or fumigation regimes, but without the aggregated loss of access to collections during enclosure and out-gassing of fumigant, thus allowing longer and safer access to collections over a year, and instilling greater knowledge of specimen condition across the collection regardless of current research focus. The study also includes an economic comparison to historical methods of case level pest suppression with fumigants against two other comparably large collections documented within the last half century.
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Pugazhvendan, S. R., P. Ronald Ross, and K. Elumalai. "Insecticidal and Repellant Activities of Four indigenous medicinal Plants Against Stored Grain Pest, Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae)." Asian Pacific Journal of Tropical Disease 2 (January 2012): S16—S20. http://dx.doi.org/10.1016/s2222-1808(12)60116-9.
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Akter, M. I., M. Arifunnahar, M. A. Hossain, M. A. Alim, and H. F. E. Taj. "Antifeedant and repellent effects of four botanical oils against fall armyworm, Spodoptera frugiperda on maize under laboratory condition." Annals of Bangladesh Agriculture 28, no. 1 (2025): 157–65. https://doi.org/10.3329/aba.v28i1.81433.
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The fall armyworm, Spodoptera frugiperda (Lepidoptera: Noctuidae), is globally recognized as the most destructive invasive pest of maize (Zea mays), a leading cereal crop. This study was conducted in CRD design to evaluate the antifeedant and repellant effects of four botanical oils viz. neem, castor, black cumin, and sesame on the first, second and third instars larvae. Three concentrations (5.0, 7.5, and 10%) of these oils were tested with an untreated control, and a chemical Tween-20 was used as an emulsifier. The results indicated that among the treatments, 10% castor oil exhibited the highest repellency (93.33, 88.33, and 80.00%) against the first, second, and third instar larvae, respectively, whereas 5% sesame oil showed the lowest (56.67, 40.00, and 43.33%). Repellency decreased with longer exposure periods. The 10% castor oil treatment also resulted in the lowest leaf consumption (16.67 mm2 and 77.67 mm2) and the highest mortality (20.00% and 16.67%) against the second and third instar larvae after 24 hours of exposure. The highest consumption of leaf (238.00 mm2and 522.33 mm2) was recorded against second, and third instar larvae, respectively after 24 hours of exposure in untreated control. Considering repellency and antifeedant efficacies, the castor oil appears to be a favorable option for integration with other components of Integrated Pest Management (IPM) package against the first, second, and third instar larvae of S. frugiperda. Ann. Bangladesh Agric. 28(1): 157-165
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D, Nsobinenyui,, Mensiy WS, Kwanda BN, et al. "TOXICITY OF SOME BOTANICAL POWDERS ON MAIZE WEEVIL Sitophilus Zeamais MOTSCHULSKY 1855 (COLEOPTERA: CURCULIONIDAE)." Sustainability in Food and Agriculture 3, no. 2 (2022): 81–86. http://dx.doi.org/10.26480/sfna.02.2022.81.86.
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Maize production system is challenged by a lot of biotic and abiotic stressors. Among the biotic stressors, the maize weevil is infamous for causing severe damage to stored maize, reducing both qualitative and quantitative qualities. Incessant use of synthetic insecticide to manage maize weevil has led to a public outcry and a need for more eco-compatible options. Botanicals provide a cheap, safe and easy-to-make, and eco-friendly option for maize weevil management. This study was designed to assess the toxicity of four medicinal plant powders on some parameters of maize weevil. The study was conducted in June-July, 2020 in the Food Science laboratory of Catholic University of Cameroon, Bamenda. Plant powders of Carica papaya seeds, Cupressus macrocarpa leaves, Piper nigrum seeds and a control (no-input) were assessed. All the parameters assessed were significantly influenced by botanical powders (P < 0.05). The highest F1 emergence suppression was observed from piper treatments, followed by cypress and pawpaw treatments. The highest and lowest maize weight loss after storage were 21.0g and 13.25g from control and piper treatments respectively. The highest germination percentage was 95.0%, followed by 80.0%, 75.0% and 52.5% from piper (bush pepper or black pepper, cypress, pawpaw and control treatment, respectively. High repellency potential was observed from botanicals and that of piper can be described as a ‘very good repellant’ and ‘good repellant’ for the other botanicals. The highest adult weevil mortality was 80.05, recorded from piper. The current study demonstrate that botanical powders can play a significant role in maize weevil management. Piper seed powder is highly recommended for management of maize weevil. In addition, it is recommended that botanical powders be incorporated into integrated pest management strategies in order to guarantee safe, healthy and quality maize in storage. Such activities are in line with the objective of sustainable development goals (SDG).
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Uefuji, Hirotaka, Yuko Tatsumi, Masayuki Morimoto, Pulla Kaothien-Nakayama, Shinjiro Ogita, and Hiroshi Sano. "Caffeine Production in Tobacco Plants by Simultaneous Expression of Three Coffee N-methyltrasferases and Its Potential as a Pest Repellant." Plant Molecular Biology 59, no. 2 (2005): 221–27. http://dx.doi.org/10.1007/s11103-005-8520-x.
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Mala, D. Deolall, Singh Dharamdeo, Srikishen Adrian, and N.B. Da Silva Phillip. "Investigating insecticidal and repellent activity of Momordica charantia, Calotropis gigantea and Cordia curassavica against Oebalus poecilus." GSC Biological and Pharmaceutical Sciences 20, no. 2 (2022): 080–86. https://doi.org/10.5281/zenodo.7139501.
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<em>Oebalus poecilus</em> (paddy bug) is a destructive rice pest in Guyana that is currently controlled with synthetic chemical pesticides. Increasing resistance rates and farmer's overuse of pesticides have resulted in economic and ecological issues for Guyanese rice farmers. Amid growing economic and ecological concerns, this experiment aimed to investigate the use of alternative botanical extracts from the leaves of <em>Momordica charantia</em> (Baan-Carailli), <em>Calotropis gigantea</em> (Madar-Flower) and <em>Cordia curassavica </em>(Blacksage) to control paddy bug infestation by testing their efficacy as insecticides on <em>O. poecilus</em>. A completely randomized experimental design and a hot water extraction method was used to prepare the leaf extracts used in this experiment. Three different concentrations (6%, 12% and 24%) of each extract were tested on the adult stage of the bugs for mortality and repellent activity. The results, after 72 hours, were recorded and revealed that all extracts demonstrated insecticidal properties. No toxicity as a systemic insecticide on contact with bugs was observed, thus implying no repellent effect. At 72 hours, the average mortalities recorded for the different extracts were <em>Momordica charantia</em> (98.62%), <em>Cordia curassavica </em>(90.25%) and <em>Calotropis gigantea</em> (100%). Extracts performed better at 6% and 24% when compared. Leaf extracts from <em>Calotropis gigantea</em> at 6% and 24% were most effective when compared to the other extracts used in this experiment.
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Soulié, Anne-Sophie, Nathalie Sleeckx, and Lise Roy. "Repellent properties of natural substances against Dermanyssus gallinae: review of knowledge and prospects for Integrated Pest Management." Acarologia 61, no. 1 (2021): 3–19. http://dx.doi.org/10.24349/acarologia/20214412.
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The poultry red mite Dermanyssus gallinae is a strict hematophagous parasite of birds, causing major health and economic problems in poultry farms worldwide. The use of plant-derived repellents against this pest could be an alternative control method as part of Integrated Pest Management strategies. In this review, the different types of repellents and the testing methods used to explore them in arthropods are synthesized. State-of-the-art knowledge on the repellent properties of natural plant-derived substances against D. gallinae is established. Studies reporting repellent properties exerted by plant-derived substances against D. gallinae are reviewed, and the level of discrimination between the different types of properties achieved by the experimental designs implemented is examined. Factors that may modulate repellent activity in arthropods are reviewed, and the available evidence for D. gallinae is highlighted. A framework is proposed for the rational use of knowledge from experiments for the implementation of Integrated Pest Management (IPM). In addition, to optimize the implementation of IPM strategies for D. gallinae, the current knowledge related to the risk of emergence of resistance to natural repellents is documented. This phenomenon has not been explored in D. gallinae to date, but resistance to several repellent substances has been reported in insects, with some cross-resistance between repellents and neurotoxic insecticides.
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Herlinawati, Lina. "FUNGSI KARINDING BAGI MASYARAKAT CIKALONGKULON KABUPATEN CIANJUR." Patanjala : Jurnal Penelitian Sejarah dan Budaya 1, no. 1 (2009): 96. http://dx.doi.org/10.30959/patanjala.v1i1.237.
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AbstrakKarinding adalah satu jenis alat musik tradisional, dibuat dari bambu atau pelepah enau. Alat musik itu dimainkan oleh mulut disertai pukulan jari tangan, sehingga menghasilkan bunyi yang yang unik dan low decible. Alat musik tersebut diciptakan oleh leluhur petani Sunda. Selain untuk bermain musik, bunyi alat itu dipercaya dapat mengusir hama dan binatang perusak tanaman. Fungsi karinding demikian itu masih berlangsung pada masyarakat Cikalongkulon Kabupaten Cianjur.Seiring dengan perkembangan zaman, kemudian karinding menjadi alat hiburan, bahkan kini menjadi bentuk kesenian yang menarik, karena dapat dikola-borasikan dengan alat-alat musik lain. AbstractKarinding is a traditional music instrument, which is made from bamboo or palm leaf. This music instrument is played by mouth, alongside with tap from finger, creating an unique, low decible sound.This music instrument is created by the Sundanese farmer ancestor. In addition to its function as a music instrument, the sound of this instrument is believed as a pest repellant. This specific function is still believed by the people of Cikalong Kulon in Bandung Residence.Along with time, karinding developed into an entertainment tool, even as an attractive form of art because its combinable with other music instrument.
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Matisone, Ilze, Kristaps Ozoliņš, Roberts Matisons, Mārtiņš Spāde, Uldis Grīnfelds, and Rinalds Trukšs. "Summer Cafe: In Vitro Case Study of Biological Repellents Against the Large Pine Weevil." Forests 16, no. 7 (2025): 1139. https://doi.org/10.3390/f16071139.
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Growing environmental concerns have led to the search for alternative biological repellents against the large pine weevil Hylobius abietis L., Europe’s most important coniferous forest regeneration pest. A laboratory study was carried out to assess the effectiveness (damage intensity) of six combinations of a novel biological repellent, consisting of plant-based oils, beeswax, calcium carbonate, vanillin, pine bark extractives, terpentine, abrasive particles, solvent, and a viscosity agent, in comparison with commercially available repellent Norfort LDW 115. The application complexity of the repellents, their persistence on seedlings, and the extent of H. abietis damage were evaluated. The five alternative repellents had higher protection compared to the control repellent, highlighting the potential for new alternative repellents. The base (without additives) repellent provided the highest protection, indicating a redundancy of admixtures. A mixed cumulative link model, employed to estimate differences between the repellents, estimated 85% undamaged and none significantly damaged saplings in the case of the base repellent. However, the consistency and hence persistence of certain repellents on plantlets would benefit from improvements; further field studies are needed to upscale the test of the stability and efficiency of high levels in real environments under different H. abietis population pressures.
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Feng, Xu, Cheng-Bin Shan, Jian-Nan Ma, et al. "Main Chemical Components, Activity and Mechanism of Repellence of Cyperus esculentus Essential Oil Against Tribolium confusum." Molecules 30, no. 3 (2025): 631. https://doi.org/10.3390/molecules30030631.
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Tribolium confusum is a major stored-product pest that exhibits resistance to chemically synthesized pest repellents. This study investigated the potential of essential oil (EO) extracted from the roots of Cyperus esculentus as a natural alternative for pest management. The EO was obtained through steam distillation, and its chemical composition was elucidated using gas chromatography–mass spectrometry. The primary compounds, cyperotundone and cyperene, were further isolated from the EO through silica gel column chromatography. The efficacy of the EO and its isolated compounds as pest repellents was evaluated against a flaxseed pest, which was identified as T. confusum through DNA sequence analysis. The results demonstrated that at 86.12 μg/cm2, the EO and its two main components maintained significant repellent activity for up to 24 h. In contrast, the effectiveness of the positive control, N, N-diethyl-3-methylbenzamide (DEET) declined rapidly after 8 h. At 16 h, the repellent activity of the EO and one of its main components, cyperotundone, was significantly greater than that of DEET. Furthermore, at a lower concentration of 43.06 μg/cm2, cyperotundone’s repellent activity was significantly stronger than DEET’s at 16 h. Additionally, cyperotundone outperformed DEET significantly from 4 to 16 h at 21.53 μg/cm2 and at 16 h at 10.76 μg/cm2. Among the two compounds, cyperotundone exhibited a longer-lasting repellent effect compared to cyperene, which is consistent with the lower evaporation rate of cyperotundone. Biochemical assays revealed that exposure to the EO of C. esculentus and its major compounds significantly reduced (p < 0.05) the activities of acetylcholinesterase and glutathione-S-transferase in T. confusum. Molecular docking experiments indicated that the compounds could bind to olfactory receptors with low binding energies. qRT-PCR analysis revealed that the EO and its two compounds significantly altered (p < 0.05) the expression levels of odorant receptor genes in the pest. These findings suggest that the repellent action of C. esculentus EO and its major compounds on T. confusum may be mediated through the modulation of the pest’s olfactory system, as well as by inhibiting essential enzymatic activities in the pests. This research contributes valuable insights into the development of sustainable, long-lasting, and eco-friendly pest repellents, harnessing the potential of the rich botanical resource C. esculentus.
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El Boukhari, Reda, Maima Matin, Atanas G. Atanasov, and Ahmed Fatimi. "Recent advances in pest-repellents based on the Lamiaceae family’s plants: a patent analysis overview." Animal Science Papers and Reports 42, no. 4 (2024): 383–400. https://doi.org/10.2478/aspr-2023-0044.
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Abstract The development of natural and eco-friendly repellents, specifically those derived from plants, has particular relevance because these plant-based repellents offer a promising alternative to chemical-based repellents. Also, plant-derived repellents could be cost-effective and safer for non-target organisms. However, the pure form of plant extracts could be hazardous as a repellent. Thus, safe concentrations and convenient delivery forms are essential. The plants of the Lamiaceae family have shown great potential in the formulation of this type of repellent against a wide range of pests, especially thanks to the properties of the components of their extracts and essential oils. This research aims to identify recent innovations in the field of plant-based repellents of the Lamiaceae family, founded on patent documents. Therefore, patent databases were searched, using appropriate keywords and refining the search using patent classification codes. We reviewed 72 patent documents, grouped into 52 simple families, published over the last ten years. The United States is the jurisdiction in which 64% of those documents were filed. The year 2019 showed the publication of the largest number of patent documents, with ten patent applications and four granted patents. We conclude that, in parallel with research in this field, which continues to advance, many innovative solutions that take advantage of the natural repellent properties of plants in the Lamiaceae family contribute to ongoing sustainable and ecological pest management efforts.
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Nandhini, D. Udhaya, M. Thiyagarajan, and E. Somasundaram. "Soil fertility of rice- blackgram cropping sequence as influenced by different organic sources of nutrients." Bangladesh Journal of Botany 51, no. 2 (2022): 289–96. http://dx.doi.org/10.3329/bjb.v51i2.60426.
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Residual effects of organic manures on rice-blackgram cropping sequence, during 2017 and 2018 at Thoppur, Thirupparankundram, Madurai were studied at field levels. Twelve treatment combinations comprising various sources of nutrients (Green manure @ 6.25 t/ha, neem cake@250 kg/ha, Enriched FYM @1.0 t/ha, tamarind seed powder @ 100 kg/ha, vermicompost @ 4 t/ha, Panchagavya @ 3%, Multi varietal seed technique, herbal pest repellant spray @ 10%, state recommendation) in a Randomized Block Design with three replications laid out for rice, were used for rice fallow blackgram. The mean soil available N (345 kg/ha), phosphorous (33 kg ha-1) and potassium (310 kg/ha) of 2 cropping cycles were significantly superior with the application of green manure @ 6.25 t/ha along with split application of vermicompost in four equal splits @ 4 t/ha as basal, at active tillering, panicle initiation and flowering stages + Panchagavya @ 3 per cent as foliar spray twice at active tillering and panicle initiation stages. A similar trend was also observed with respect to soil chemical and biological properties viz., soil pH, organic carbon, fungi, bacteria and actinomycetes population in the same treatment. The results of present study confirm the benefits of organic sources of manures on the nutrient retention characteristic of soil and will be conducive to improve the soil fertility for achieving sustainable soil health. Bangladesh J. Bot. 51(2): 289-296, 2022 (June)
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Gunaeni, Neni, Astri W. Wulandari, and Redy Gaswanto. "Pengaruh tumpangsari cabai dan tomat terhadap perkembangan hama utama dan hasil cabai (Capsicum annuum L.)." Jurnal Agro 9, no. 1 (2022): 37–47. http://dx.doi.org/10.15575/16028.
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Tumpangsari cabai dan tomat merupakan salah satu sistem kultur teknis dalam pengendalian hama terpadu. Tujuan penelitian untuk mendapatkan sistem penanaman cabai yang paling tepat dalam menekan perkembangan hama utama dan meningkatkan hasil cabai. Penelitian dilakukan di Balitsa. Penelitian dilaksanakan pada bulan April sampai dengan Desember 2018, metode percobaan menggunakan Rancangan Acak Kelompok diulang empat kali dengan perlakuan: (A). Cabai dan tomat ditanam bersamaan (B). Tomat ditanam satu minggu setelah cabai (C). Tomat ditanam dua minggu setelah cabai (D). Tomat ditanam tiga minggu setelah cabai (E). Cabai ditanam monokroping tanpa menggunakan mulsa plastik hitam perak (F). Cabai monokroping dengan menggunakan mulsa plastik hitam perak. Hasil penelitian: Tumpangsari cabai dan tomat berpengaruh baik dalam menekan populasi kutu daun 14,65%-48,91%, kutu kebul 18,30%-27,16%, trips 11%-41,44%, dan dapat meningkatkan hasil cabai 90%-127% dibandingkan cabai monokroping dan 10%-31% cabai monokroping dengan mulsa plastik hitam perak. Implikasi dari hasil penelitian sistem tanam tumpangsari cabai dan tomat dapat menghambat perkembangan populasi hama utama cabai karena dapat bersifat sebagai barrier dan repellen. Perlakuan terbaik adalah tomat ditanam 1 dan 2 minggu setelah cabai.ABSTRACTChilli and tomatoes intercropping is a technical culture system in integrated pest control. The study aimed to find the most appropriate chilli planting system to suppress the development of major pests and increase chilli yields. The research was conducted at the IVEGRI. The study was conducted from April to December 2018, and the experimental method using an RBD was repeated four times. Treatments: (A). Chilli and tomato planted together (B). Tomatoes were planted one week after chilli (C). Tomatoes are planted two weeks after chilli (D). Tomatoes are planted three weeks after chilli. (E). The chilli was grown monocrop without silver black mulch (F). Chilli was grown monocrop with silver black mulch. The results: Chilli and tomato intercropping had a good effect on suppressing aphids population 14,65%-48,91%, white flying 18,30%-27,16%, trips 11%-41,44%, and could increase chilli yields 90%-127% compared to monocropped chilli and 10%-31% monocropped chilli with silver black mulch. The implications of the research results on chilli and tomato intercropping systems can inhibit the development of the main pest population of chilli because they act as a barrier and repellant. The best treatment is tomato planted 1 and 2 weeks after chilli. Tumpangsari cabai dan tomat merupakan salah satu sistem kultur teknis dalam pengendalian hama terpadu. Tujuan penelitian untuk mendapatkan sistem penanaman cabai yang paling tepat dalam menekan perkembangan hama utama dan meningkatkan hasil cabai. Penelitian dilakukan di Balitsa. Penelitian dilaksanakan pada bulan April sampai dengan Desember 2018, metode percobaan menggunakan Rancangan Acak Kelompok diulang empat kali dengan perlakuan: (A). Cabai dan tomat ditanam bersamaan (B). Tomat ditanam satu minggu setelah cabai (C). Tomat ditanam dua minggu setelah cabai (D). Tomat ditanam tiga minggu setelah cabai (E). Cabai ditanam monokroping tanpa menggunakan mulsa plastik hitam perak (F). Cabai monokroping dengan menggunakan mulsa plastik hitam perak. Hasil penelitian: Tumpangsari cabai dan tomat berpengaruh baik dalam menekan populasi kutu daun 14,65%-48,91%, kutu kebul 18,30%-27,16%, trips 11%-41,44%, dan dapat meningkatkan hasil cabai 90%-127% dibandingkan cabai monokroping dan 10%-31% cabai monokroping dengan mulsa plastik hitam perak. Implikasi dari hasil penelitian sistem tanam tumpangsari cabai dan tomat dapat menghambat perkembangan populasi hama utama cabai karena dapat bersifat sebagai barrier dan repellen. Perlakuan terbaik adalah tomat ditanam 1 dan 2 minggu setelah cabai.
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Ghorse, Vishal, Jagdish Kene, and Rakshal Agrawal. "Arduino based insect & rodent repeller for living & working spaces." 3C Tecnología_Glosas de innovación aplicadas a la pyme 11, no. 2 (2022): 81–88. http://dx.doi.org/10.17993/3ctecno.2022.v11n2e42.81-88.
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With so many amazing things going on in the world of science and technology, we still don't have an effective solution to ward off pests electronically. Pesticides, insecticides and other repellents are toxic and dangerous to human health. Electronic Pest Repellent (EPR) is a new technology that is cheap, environmentally friendly, effective and poses no risk to humans. Electronic pest repellents are electronic devices that are capable of producing sounds in the ultrasonic frequency range that are inaudible to the human ear but are audible to pests such as rodents, birds and insects. Sounds of this frequency (10-100 kHz) are annoying to pests and leave the place due to severe hearing impairment. The device can be used by the general public to repel mosquitoes, insects, cockroaches and by farmers to repel rodents, insects and other pests.
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Matsyura, A. V. "Effectiveness of antiperching devices against the Feral Pigeons." Ukrainian Journal of Ecology 8, no. 2 (2018): 326–28. http://dx.doi.org/10.15421/2018_348.
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<p>Nowadays, the problem of pest-control at grain processing plants is of great and urgent importance. The feral pigeons recently became the most abundant species that use the territory of such enterprises all year round. We undertook the investigation towards effectiveness of pigeons repelling during the course of pest management. We use anti-roosting spikes, optical and repellent gel along with the wire systems to protect the industrial area against the pigeons. Our study contributed to the fact, that the mechanical antiperching devices still the most effective as for their use in pigeon control and management.</p>
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Francikowski, Jacek, Bartosz Baran, Mikołaj Cup, Jakub Janiec, and Michał Krzyżowski. "Commercially Available Essential Oil Formulas as Repellents Against the Stored-Product Pest Alphitobius diaperinus." Insects 10, no. 4 (2019): 96. http://dx.doi.org/10.3390/insects10040096.
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The main aim of the presented paper is to assess the potential repellent effect of selected essential oils (EOs) against the lesser mealworm (Alphitobius diaperinus), which can cause economic losses in storage and in the poultry industry. Due to the development of pesticide resistance in A. diaperinus populations, as well as an attempt to limit extensive use of potentially harmful pesticides in food-related industries, there is a strong need for the development of alternative methods of dealing with A. diaperinus infestations. Because of their cost-effectiveness, availability and low vertebrate toxicity, EOs are promising agents in pest management. In the presented paper four off-the-shelf EOs: mint, vanilla, lemon and citronella (and mixtures of them) were tested as potential repellents. Moreover, a novel preference assay, providing an extended analysis of the preference and the locomotor response, was used. The most effective EOs were: citronella and lemon. EOs mixtures were generally more repellent than individual EOs, with the lemon and vanilla 1:1 mixture acting as the strongest repellent. A few of the tested EOs caused significant alterations to the locomotor activity, although no direct relation was observed. In conclusion, EOs can be potentially used as repellent agents in A. diaperinus management. Additionally, data on the locomotor activity may lead to designing better push-pull strategies in pest management.
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Lozano-Soria, Ana, Ana Piedra-Buena Diaz, Federico Lopez-Moya, et al. "Volatile organic compounds from entomopathogenic and nematophagous fungi repel banana weevil (Cosmopolites sordidus) under banana field conditions." PeerJ 13 (May 29, 2025): e19414. https://doi.org/10.7717/peerj.19414.
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Fungal volatile organic compounds (VOCs) with biological activity produced by entomopathogenic fungi (Beauveria bassiana and Metarhizium robertsii) isolated from banana fields (Canary Islands) and the nematophagous fungus Pochonia chlamydosporia, used in biocontrol of root-knot nematodes, repel the banana weevil (BW), Cosmopolites sordidus (Germar, 1824) under laboratory conditions. BW is the main pest of banana (Musa spp. (Linnaeus, 1753)). Its cryptic behavior makes it difficult to manage. Repellent VOCs alter BW behavior and can thus be used in sustainable pest management strategies. We evaluated fungal VOCs styrene (C1), benzothiazole (C2), 1,3-dimethoxybenzene (C5) and 2-cyclohepten-1-one (C7) in Canary Islands banana fields naturally infested with BW. 1,3-dimethoxybenzene (C5) significantly reduced the attraction of BW adults to sordidin (BW aggregation pheromone) in banana fields. C5 was detected in the field using GC-MS. C1 and C2 had a mild repellent effect influenced by seasonal changes. C7 VOC did not repel BW in the field. Site and season affected VOCs repellence to BW. Climate may influence VOCs evaporation and therefore their repellent efficacy. VOCs modify BW spatial ecology under field conditions. The inverse distance weighted (IDW) interpolation technique showed changes in BW infestation patterns after application of VOCs in the field. In conclusion, VOCs from biocontrol fungi reduced BW attraction to its aggregation pheromone in banana fields. These responses to experimental BW repellents were influenced by weather and BW population size. BW repellents have potential to be used in “push-pull” strategies to manage BW sustainably in banana crops.
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Manurung, Syafri Maradu, Anjar Wanto, and Indra Gunawan. "Rancang Bangun Alat Pengusir Hama Burung Berbasis Arduino Uno." JiTEKH 10, no. 2 (2022): 84–90. http://dx.doi.org/10.35447/jitekh.v10i2.581.
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Bird pests are one of the problems that always haunt farmers, these pests often make it difficult for farmers, plus during the rice harvest period, bird pests will increase, thereby reducing the production yields that will be produced. The purpose of this study is to make an Arduino Uno-based bird repellent using an ultrasonic sensor, which is to read if a bird approaches it will automatically activate the sound that has been installed on a bird repellent that resembles a scarecrow. In addition, this tool can also move automatically if there are pests that come, the result of this study is the application of Bird Pest Repellents that can be implemented in rice fields.
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Loko, Laura Yêyinou, Obédatou Alagbe, Elie A. Dannon, et al. "Repellent Effect and Insecticidal Activities ofBridelia ferruginea,Blighia sapida, andKhaya senegalensisLeaves Powders and Extracts againstDinoderus porcellusin Infested Dried Yam Chips." Psyche: A Journal of Entomology 2017 (2017): 1–18. http://dx.doi.org/10.1155/2017/5468202.
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Dinoderus porcellusis considered as the most important pest of stored yam chips and compounds extracted from plants can be used for its control. The present study aimed to test the insecticidal and repellent activities of powders and extracts of leaves ofBridelia ferruginea,Blighia sapida, andKhaya senegalensisagainstD. porcellus. The efficacy of plant powders was compared with the synthetic pesticide Antouka (Permethrin 3 g/kg + pirimiphos 16 g/kg). The results of the experiment revealed that all plant powders were effective as repellents. Antouka was more effective as insecticidal than the plant powders and minimal weight loss was observed withB. sapidaat 2%. Among treatments, propanol extract ofK. senegalensisat 5% was found to elicit the highest repellent effect onD. porcellus. The LC50results revealed that the acetone extract ofK. senegalensisis the most toxic (0.29 μL/insect) to the pest, while the propanol extract ofB. ferrugineaat 5% exhibited strong fumigant toxicity againstD. porcellus, with 88.89% of pest mortality at 160 μL/L air. The findings from the current work proved that plant powders and extracts of the three plants are sources of botanical insecticides which may be used in the integrated management ofD. porcellus.
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Al Dawsari, Mona Mohammed, and Pravej Alam. "Disruption impact of citronella and menthol insecticides on adults behavior and hemocytes morphology in the red palm weevil Rhynchophorus ferrugineus “Oliver” (Coleoptera: Curculionidae)." Science Progress 105, no. 1 (2022): 003685042210794. http://dx.doi.org/10.1177/00368504221079437.
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This study was conducted to evaluate some terpenes effect on the behavior and immune function of hemocytes in adults of the red palm weevil Rhynchophorus ferrugineus. Six individual different terpenes these are: (±)-menthol, B-citronellol, ( + )-3-carene, (R)- ( + )- limonene, citronella oil and orange terpenes. The results revealed significant differences between the terpenes used on the olfactory response on this insect, in that half of the compounds were very attractive while the other half were repellant to them. This behavior study results with olfactometer citronella oil exhibited an 80% attraction response rate for both sexes, while menthol exhibited a 60% attraction response rate for females and 100% for males. By contrast, menthol had a more significant effect on adults than citronella, lethal concentration at 50 scale (LC50) values of 1.03, 0.89, and 0.9 mg, and LC95 values of 5.09, 2.01, and 1.59 mg, after 24, 48 and 72 h, respectively. For citronella oil, the LC50 values were 2.09, 1.76, and 1.70 mg after 24, 48, and 72 h, and the LC95 values were 5.5, 3.7, and 1.5 mg after 24, 48 and 72h, were noted. In the present study, the effects of citronella and methanol insecticides were observed on six types of hemocytes namely prohemocytes, granulocytes, plasmatocytes, oenocytes, coagulocytes and spherulocytes. Both citronella oil and menthol had a histopathological effect on the hemocytes of the adult red palm weevil, specifically, on the cell membrane, cytoplasm, and nucleus. The findings also revealed that the vacuoles in some hemocytes, specifically, the prohemocytes, plasmatocytes, and granulocytes were more sensitive than those in other hemocytes, which remained unaffected by the treatment. The effects of citronella and menthol on RPW immunity were demonstrated in this study, and this information may be applied to their usage in integrated pest control at sub-lethal dosages.
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Mossi, Altemir J., Camila A. Zanella, Gabriela Kubiak, et al. "Essential oil of Ocotea odorifera: An alternative against Sitophilus zeamais." Renewable Agriculture and Food Systems 29, no. 2 (2013): 161–66. http://dx.doi.org/10.1017/s1742170513000045.
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AbstractNowadays, the maize weevil Sitophilus zeamais—Motsch 1855 is the most relevant pest found during storage of maize grains. Aiming at protecting the agricultural crops, high amounts of synthetic pesticides are used around the world. In this sense, this work aimed at evaluating the insecticidal and repellent effect of essential oil of Ocotea odorifera (Vellozo) Rohwer (Lauraceae) (O. odorifera (sassafras)) leaves against the maize weevil in maize grains. The essential oil's chemical composition showed that sassafras contains camphor (43%) and safrole (42%) as major compounds. Our results show that sassafras oil was insecticidal and repellent to maize weevil. About 100% mortality was achieved using a concentration of 0.32 μl cm−2, after 24 h of exposure. The LD50 value was 14.1 μl or 0.09 μl cm−2 and the study of the effect on insect mortality at the lethal doses (LD50) showed that after 72 h mortality was 100%. The values of the preference index varied from −0.39 (0.065 μl cm−2) to −0.63 (0.659 μl cm−2), demonstrating that the plant oil presents repellent activity. The repellency bioassay simulating small bins showed the repellent effect level from 0.64 (0.36 μl cm−3) to 0.94 (2.9 μl cm−3). The essential oil of sassafras presented insecticidal and repellency against maize weevil. Although from an economical point of view synthetic chemicals are still more frequently used as repellents, natural products (essential oils) have the potential to provide efficient and safer repellents for humans and the environment.
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Norida, M., S. S. Yahya, and F. Ghazali. "Effectiveness of Homemade Repellents and Spray Timing in Controlling Insect Pest in Okra (Abelmoschus esculentus) and Chinese Mustard (Brassica rapa var. Parachinensis)." IOP Conference Series: Earth and Environmental Science 1208, no. 1 (2023): 012021. http://dx.doi.org/10.1088/1755-1315/1208/1/012021.
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Abstract Pest is primary main destructive agents in fruits and vegetable production that impact the quality and its production. Insect pests are the most ruinous agents that attack vegetable plants. Use of chemical pesticides has become extensive to reduce the losses. However, synthetic pesticides can have adverse effects on the environment and human if applied without proper training in pesticide application. One of the alternative ways to control pests that are environmentally safe and cost effective is by using natural repellents. However, there are little study conducted on the application method regarding the effectiveness of the natural repellent in controlling pest. Hence, the present experiment was aimed to evaluate the effectiveness of neem fermentation and the combination solution of garlic, chili and ginger and its spray timing in controlling pest on Abelmoschus esculentus and Brassica rapa. There are two different application times, which are early morning 8-9 a.m. and the late evening which is between 6-7 p.m. The parameters collected were severity of pest infestation, number of pests infected in each treatment, and the yield of okra and mustard. Data were analysed using ANOVA and mean comparison using LSD. The result show that for both okra and mustard treated with neem can control insect attacks most effectively, followed by mixture of chili, garlic, and ginger. Between application times of natural plant repellent, spraying in late evening showed the most efficient in controlling pest attack, compared to spray in the early morning.
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Shelomi, Matan, Bo-Jun Qiu, and Lin-Ting Huang. "Cucumber vs Ants: a Case Against the Myth of the Uses of Plant Extracts in Insect Pest Management." Sociobiology 68, no. 2 (2021): 5813. http://dx.doi.org/10.13102/sociobiology.v68i2.5813.
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An accumulation of questionable scientific reports on the use of natural plant extracts to control household pest insects, using biologically irrelevant experimental designs and extremely high concentrations, has resulted in a publication bias: “promising” studies claiming readily available plants can repel various insects, including social insects, despite no usable data to judge cost-effectiveness or sustainability in a realistic situation. The Internet provides a further torrent of untested claims, generating a background noise of misinformation. An example is the belief that cucumbers are “natural” ant repellent, widely reported in such informal literature, despite no direct evidence for or against this claim. We tested this popular assertion using peel extracts of cucumber and the related bitter melon as olfactory and gustatory repellents against ants. Extracts of both fruit peels in water, methanol, or hexane were statistically significant but effectively weak gustatory repellents. Aqueous cucumber peel extract has a significant but mild olfactory repellent effect: about half of the ants were repelled relative to none in a control. While the myth may have a grain of truth to it, as cucumber does have a mild but detectable effect on ants in an artificial setup, its potential impact on keeping ants out of a treated perimeter would be extremely short-lived and not cost-effective. Superior ant management strategies are currently available. The promotion of “natural” products must be rooted in scientific evidence of a successful and cost-effective implementation prospect.
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Wen, Jian, Zhe Shan, Yan Zou, et al. "Developing an Effective Push–Pull System for Managing Outbreaks of the Invasive Pest Bactrocera dorsalis (Diptera: Tephritidae) in Nephelium lappaceum Orchards." Agronomy 14, no. 5 (2024): 890. http://dx.doi.org/10.3390/agronomy14050890.
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Outbreaks of the oriental fruit fly, Bactrocera dorsalis (Hendel), present significant challenges to global fruit production, necessitating effective control measures that minimize environmental risks and pesticide resistance. This study aimed to develop and evaluate the effectiveness of four distinct push–pull control strategies for managing B. dorsalis outbreaks in a Nephelium lappaceum orchard. These strategies involved the inclusion of low-concentration abamectin, spraying repellent with a drone or manually, using methyl eugenol (ME) or food bait and employing either two types of attractants and repellents or a single type. The findings indicated that incorporating the low-concentration abamectin into the push–pull system, utilizing ME as an attractant instead of food lures and manually applying abamectin and attractants were all effective in reducing the B. dorsalis population size and minimizing fruit damage. While increasing the diversity of repellents and attractants enhanced the long-term effectiveness of the system, it did not result in a significant decrease in B. dorsalis population size or fruit damage rate compared to using a single repellent or attractant. In conclusion, the push–pull strategy emerged as a viable method for managing B. dorsalis outbreaks, offering potential benefits in reducing environmental risks and pesticide resistance. However, the study underscored the importance of the context-specific construction of push–pull strategies to optimize their effectiveness in orchard settings.
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Kendra, Paul E., Wayne S. Montgomery, Nurhayat Tabanca, et al. "Piperitone (p-Menth-1-En-3-One): A New Repellent for Tea Shot Hole Borer (Coleoptera: Curculionidae) in Florida Avocado Groves." Biomolecules 13, no. 4 (2023): 656. http://dx.doi.org/10.3390/biom13040656.
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The tea shot hole borer, Euwallacea perbrevis, has been recently established in Florida, USA, where it vectors fungal pathogens that cause Fusarium dieback in avocado. Pest monitoring uses a two-component lure containing quercivorol and α-copaene. Incorporation of a repellent into IPM programs may reduce the incidence of dieback in avocado groves, particularly if combined with lures in a push–pull system. This study evaluated piperitone and α-farnesene as potential repellents for E. perbrevis, comparing their efficacy to that of verbenone. Replicate 12-week field tests were conducted in commercial avocado groves. Each test compared beetle captures in traps baited with two-component lures versus captures in traps containing lures plus repellent. To complement field trials, Super-Q collections followed by GC analyses were performed to quantify emissions from repellent dispensers field-aged for 12 weeks. Electroantennography (EAG) was also used to measure beetle olfactory response to each repellent. Results indicated that α-farnesene was ineffective; however, piperitone and verbenone were comparable in repellency, achieving 50–70% reduction in captures, with longevity of 10–12 weeks. EAG responses to piperitone and verbenone were equivalent, and significantly greater than response to α-farnesene. Since piperitone is less expensive than verbenone, this study identifies a potential new E. perbrevis repellent.
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Ma, Jiawei, Ye Tian, Xuli Liu, et al. "Electrophysiological Mechanism and Identification of Effective Compounds of Ginger (Zingiber officinale Roscoe) Shoot Volatiles Against Aphis gossypii Glover (Hemiptera: Aphididae)." Horticulturae 11, no. 5 (2025): 490. https://doi.org/10.3390/horticulturae11050490.
Full textAbstract:
Aphis gossypii Glover (Homoptera: Aphidinae), a major pest of Chinese pepper (Zanthoxylum bungeanum Maxim), causes significant agricultural damage. Ginger (Zingiber officinale Roscoe) has shown potential as a source for developing botanical pesticides due to its strong bacteriostatic and insecticidal properties; however, the underlying mechanisms remain poorly understood. This study evaluated the repellent activity of ginger shoot extract (GSE) across four solvent phases—petroleum ether, trichloromethane, ethyl acetate, and methanol—against A. gossypii. The results demonstrated that GSE exhibited significant repellent effects, with the methanol phase showing the most pronounced activity. Twelve fractions were chromatographically separated from the methanol phase, and electroantennography (EAG) analysis revealed that fraction 4 induced strong EAG responses in both winged and wingless aphids. Further identification of active compounds in fraction 4 by gas chromatography–mass spectrometry (GC–MS) indicated the presence of terpenes, aromatics, alkanes, esters, and phenols as major constituents. Subsequent EAG analysis identified several key compounds—octahydro-pentalene (C1), (Z)-cyclooctene (C2), dimethylstyrene (C3), tetramethyl-heptadecane (C5), tetrahydro-naphthalene (C6), and heptacosane (C9)—as responsible for eliciting EAG responses in both aphid forms. Additionally, results from Y-tube olfactometer assays showed that (Z)-cyclooctene and heptacosane were significantly attractive, while octahydro-pentalene acted as a strong repellent to both winged and wingless aphids. These findings offer valuable insights for the development of synthetic attractants and repellents for A. gossypii and provide a theoretical foundation for utilizing ginger in the creation of botanical pesticides targeting this pest.
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Wang, Chen, Dianxuan Wang, Fangfang Zeng, et al. "Identification on Key Volatiles Contributed to Oviposition Preference of Plodia interpunctella (Hübner, 1813) (Lepidoptera: Pyralidae) from High and Normal Oleic Varieties of Peanut." Insects 15, no. 11 (2024): 866. http://dx.doi.org/10.3390/insects15110866.
Full textAbstract:
The Indian meal moth, Plodia interpunctella (Hübner, 1813) (Lepidoptera: Pyralidae), a primary stored peanut insect pest, exhibited a significant difference in oviposition preference among normal-oleic peanuts (NOPs) and high-oleic peanuts (HOPs). Identifying key volatile organic compounds (VOCs) that are attractive or repellent to P. interpunctella is of great significance for the ecological management of pests. The profiles and contents of VOCs among NOP and HOP varieties were measured and compared, and key bioactive VOCs were further confirmed via an electroantennogram (EAG) analysis, as well as behavioral responses in Y-tube olfactometer and wind tunnel bioassays. Females prefer to lay eggs on NOP varieties more than on HOP ones. Acetophenone, nonanal, decanal, dodecane, 2,5-dimethylbenzaldehyde, and 4-ethyl-benzaldehy derived from tested peanuts elicited stronger antennal EAG responses. The results of the Y-tube olfactometer and wind tunnel bioassay showed that the relative high levels of nonanal, dodecane, and unique VOC acetophenone in NOP varieties have a significant attraction to P. interpunctella. Conversely, 4-ethyl-benzaldehyde and the unique VOC 2,5-dimethyl-benzaldehyde commonly found in HOP varieties exhibit notable repellent effects on P. interpunctella. These VOCs could contribute to the development of attractants or repellents derived from special peanut varieties for pest management.
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Kasim, M., M. Musaruddin, LK Mansur, RD Palupi, W. Jalil, and A. Takwir. "Study of underwater sound effects relation to current velocity and Siganus sp. population in seaweed cultivation area." IOP Conference Series: Earth and Environmental Science 1273, no. 1 (2023): 012014. http://dx.doi.org/10.1088/1755-1315/1273/1/012014.
Full textAbstract:
Abstract Underwater sound is one of the interesting phenomena in the ocean. Underwater sounds can impact marine organisms, especially fish and mammals. One of the organisms that can be influenced by underwater sound is the Siganus fish. This study aims to determine sound propagation with a certain level of fish pest repellents about the surface currents velocity and Siganus canaliculatus. population in seaweed cultivation areas. This research was conducted in a seaweed cultivation area in Baubau City, Southeast Sulawesi, Indonesia, in May-July 2022. The tool used is a seaweed pest repellent Ver.04 (Usirikan Ver 03). Underwater sound, at a strength level of 76.19-83.09 dB, can propagate quickly at 60 m in diameter of the sea area. The farthest distance multiplied at a strength of 62.41-69.30 dB can reach 150 m in diameter of the sea area. The fish population (S. canaliculatus) was not found in the seaweed cultivation area, with a sound level of 62.41 dB. The population of Siganus fish is around 2-4 ind/m2 at a sound level of 48.62 dB. Underwater sound with a sound level above 50 dB can impact the population of S. canaliculatus. Seaweed fish repellent can significantly affect behavior. of S. canaliculatus
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Tahere, Rahdari, and Hamzei Mostafa. "Repellency Effect of Essential Oils of Mentha piperita, Rosmarinus officinalis and Coriandrum sativum on Tribolium confusum duval (Coleoptera: Tenebrionidae)." Chemistry Research Journal 2, no. 2 (2017): 107–12. https://doi.org/10.5281/zenodo.13956386.
Full textAbstract:
Confused flour beetle<strong>, </strong><em>T</em><em>ribolium confusum</em> is a major pest of stored products especially cereal flour depreciating the quantity and quality of the food, economically. The application of repellents could be considered as a new control method in storage products. In this study repellent activity of essential oils of <em>Mentha piperita, Rosmarinus officinalis</em> and <em>Coriandrum sativum</em> was assayed on <em>Tribolium confusum</em> at 27±1 °C, 65±5% R.H under dark condition. The essential oil was obtained from dry seeds of <em>C. sativum</em> and aerial parts of <em>M. piperita </em>and <em>R. officinalis</em> subjected to hydrodistilation using a Clevenger type-apparatus. The results showed that essential oil of <em>R. officinalis</em> and <em>M. piperita</em> were more repellent than <em>C. sativum</em>. The essential oils of <em>R. officinalis, M. piperita</em> and <em>C. Sativum</em> lead to repellent of 86.22, 82.22 and 67.15 % after 24 h, respectively. Repellency increased with increasing of concentration in all cases. These results demonstrated the efficacy of <em>M. piperita, R. officinalis</em> and <em>C. sativum</em> oils for applying in organic food protection.
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Martynov, V. O., O. G. Titov, T. M. Kolombar, and V. V. Brygadyrenko. "Influence of essential oils of plants on the migration activity of Tribolium confusum (Coleoptera, Tenebrionidae)." Biosystems Diversity 27, no. 2 (2019): 177–85. http://dx.doi.org/10.15421/011924.
Full textAbstract:
Pest control should be ecologically-based, therefore use of ecologically safe approaches is the best variant. Essential oils of plants can affect the main metabolic, biochemical, physiological and behavioural functions of insects. In the experiment, we evaluated the influence of 20 essential oils on migration activity of imagoes of Tribolium confusum Jacquelin du Val, 1863 in the conditions of a laboratory experiment. Notable repellent activity against T. confusum was exhibited by essential oils of Jasminum officinale and Thuja occidentalis. Essential oils of Zingiber officinale and Cedrus atlantica had an attractant effect on imagoes of T. confusum. Essential oils of Rosmarinus officinalis, Melaleuca alternifolia, Lavandula angustifolia and Cinnamomum verum exhibited repellent properties while essential oils of Juniperus communis and Citrus sinensis had an attractant effect on the pests. Therefore, out of 20 studied essential oils, only four samples had notable biological effect on migration activity of T. confusum imagoes. These data indicate the possibility of using essential oils or their main components as ecologically safe natural repellents against pests of stored wheat and products of its processing.
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Bumbulytė, Gabrielė, Jurga Būdienė, and Vincas Būda. "Essential Oils and Their Components Control Behaviour of Yellow Mealworm (Tenebrio molitor) Larvae." Insects 14, no. 7 (2023): 636. http://dx.doi.org/10.3390/insects14070636.
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Beetle Tenebrio molitor L. (Coleoptera, Tenebrionidae) is a well-known pest of grain and flour in food stores and grocery shops. Recently, commercial cultivation of the insect was started for human food and animal feed. Behaviour control of this insect using natural repellents is promising both for grain protection and commercial cultivation. We analysed if natural products of plant origin, namely essential oils (EOs), could be used for this purpose. Behavioural tests were performed using EOs of six plants: thymus (Thymus vulgaris), eucalyptus (Eucalyptus globulus), spearmint (Mentha spicata), lavandin (Lavandula × hybrida), East-Indian lemongrass (Cymbopogon flexuosus), and clove (Eugenia caryophyllus). The most effective repellent for mealworm larvae was EO of spearmint, moderate activity showed that of clove and the least repellent were EOs of lemongrass thymus and lavandin. EO of eucalyptus caused almost no or very low effect. Six of the most abundant compounds of the EOs were selected for testing. The most effective single compounds were terpinene-4-ol and carvone, low-effective cis-sabinene hydrates and those of no significant activity were limonene, myrcene and γ-terpinene.
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Ali Abdullah, Muqdad, Sawsan Ahmed Khalaf Elhadeeti, and Nidaa Saud Alshammary. "Role of some plants powder in controlling the red flour beetle, Tribolium castaneum in the laboratory." Transactions of the Chinese Society of Agricultural Machinery 56, no. 1 (2025): 35–44. https://doi.org/10.62321/issn.1000-1298.2025.1.03.
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The red flour beetle (Tribolium castaneum) is a major pest causing significant damage to stored grains, leading to substantial economic losses. This study evaluated the repellent and insecticidal effects of red pepper (Capsicum frutescens), moringa (Moringa oleifera), and eucalyptus (Eucalyptus camaldulensis) powders against T. castaneum larvae and adults. Plant materials were dried, ground, and applied to crushed rice grains at concentrations of 1%, 2.5%, and 5%. The repellent effect was assessed by recording the number of insects leaving treated grains over five days, while the insecticidal effect was determined by calculating the corrected mortality percentage after seven days of treatment. Results showed that eucalyptus powder at 5% concentration had the highest repellent effect on larvae, with an overall repellence rate of 46.01%. Red pepper powder at 5% concentration was most effective in repelling adults, with an average repellence rate of 71.46%. Moringa powder at 5% concentration exhibited the highest insecticidal effect, causing 66.67% mortality in both larvae and adults. The efficacy of plant powders increased with higher concentrations. The repellent and insecticidal effects of these plant powders may be attributed to their volatile compounds, secondary metabolites, and physical properties. This study demonstrates the potential of using red pepper, moringa, and eucalyptus powders as eco-friendly alternatives to synthetic insecticides for protecting stored rice grains from T. castaneum infestation. Further research is needed to evaluate the effectiveness of these plant powders in protecting other stored crops from various storage pests.
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Audley, Jackson P., Christopher J. Fettig, A. Steven Munson, Darren C. Blackford, Leif A. Mortenson, and Agenor Mafra-Neto. "MCH-Based Semiochemical Repellents for Protecting Engelmann Spruce Trees From Dendroctonus rufipennis (Coleoptera: Curculionidae)." Journal of Economic Entomology 115, no. 1 (2021): 187–92. http://dx.doi.org/10.1093/jee/toab251.
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Abstract Spruce beetle, Dendroctonus rufipennis Kirby (Coleoptera: Curculionidae), is a lethal pest of spruce trees in North America. Despite decades of research, a semiochemical repellent that consistently and effectively protects spruce trees remains elusive. We evaluated the efficacy of 3-methyl-2-cyclohexen-1-one (MCH) in a proprietary, volatile compound release technology (SPLAT) alone and with two adjuvants, Acer kairomone blend (AKB) and acetophenone + green leaf volatiles (PLUS) to protect individually treated Picea engelmannii Parry ex. Engelm. (Pinales: Pinaceae), and Pi. engelmannii within 11.3-m radius of the individually treated trees from colonization and mortality attributed to D. rufipennis in western Wyoming. Ninety-one Pi. engelmannii were baited with frontalin and randomly assigned to one of seven treatments (n = 13): 3.5 g of MCH applied as SPLAT MCH (SPLAT3.5), 3.5AKB, 3.5PLUS, 7 g of MCH applied as SPLAT MCH (SPLAT7), 7AKB, 7PLUS, and baited control (bait only). All repellents except SPLAT3.5 and SPLAT7 significantly reduced colonization of individually treated Pi. engelmannii compared to the baited control. 3.5PLUS, 7AKB, and 7PLUS reduced colonization most effectively, and all repellents significantly reduced mortality of individually treated Pi. engelmannii compared to the baited control. All repellents also significantly reduced colonization and mortality of neighboring Pi. engelmannii.
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Tiwari, Archana, Sakemohammed S, Kamlesh, et al. "Comparative Study of Different Medicinal Plants Extracts as Repellency and Toxicity against Tribolium castaneum Herbst." UTTAR PRADESH JOURNAL OF ZOOLOGY 45, no. 21 (2024): 130–37. http://dx.doi.org/10.56557/upjoz/2024/v45i214622.
Full textAbstract:
Many plant species possess significant potential for use as medicinal agents, offering not only therapeutic benefits for humans and animals but also acting as natural insect repellents for the protection of stored grains. This study explores the repellency and toxicity of specific medicinal plants, particularly those that exhibit resistance to insect infestation. The investigation focused on the efficacy of the leaves of several selected plants against Tribolium castaneum, a common pest affecting stored grain products. The toxicity was evaluated by recording insect mortality at different intervals (12, 24, 48, and 72 hours) after exposure to plant extracts. Results showed that plant materials had varying effects depending on the species used, the type of insect, and the duration of exposure. Additionally, the repellent properties of the plant extracts were assessed, with the test leaves demonstrating repellency rates of 76% to 78% against Tribolium castaneum, significantly higher compared to the control group, which lacked any plant material. This study highlights the potential application of medicinal plants in pest management as a natural, eco-friendly alternative to chemical pesticides for grain protection.
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Candra, Rudi Arif, Dirja Nur Ilham, Arie Budiansyah, and Muhammad Khoiruddin Harahap. "Microcontroller-Based Automatic Bat Pest-Repellent Device." PERFECT: Journal of Smart Algorithms 2, no. 1 (2025): 1–6. https://doi.org/10.62671/perfect.v2i1.27.
Full textAbstract:
Bat habitats often coexist with human life, especially in homes, these mammals usually perch on the roofs of rooms or warehouses. In general, bats are parasites and pests for human life, therefore researchers have designed an automatic bat pest-repellent tool based on a microcontroller. This study aimed to create an automatic bat pest-repellent tool based on a microcontroller and electronic components as support for the circuit. This research method used three parts, namely input, output, and control. Where Arduino functioned as a controller for the entire circuit, while the ultrasonic sensor functioned as input while the Df player and speaker functioned as output. In this study, the researcher conducted 10 tests to determine the performance of the designed tool. After conducting 10 tests, the speaker produced a sound to repel bats, and the ultrasonic sensor was used as a detector of bat movements, in this test the distance of the ultrasonic sensor detected bats has been programmed, it was 5 cm to 50 cm.
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Liu, Zhe, Wenbin Chen, Shuai Zhang, et al. "Behavioral Responses of Bemisia tabaci Mediterranean Cryptic Species to Three Host Plants and Their Volatiles." Insects 13, no. 8 (2022): 703. http://dx.doi.org/10.3390/insects13080703.
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Bemisia tabaci Gennadius (Hemiptera: Aleyrodidae) is a worldwide pest that damages over 900 host plant species. The volatile organic compounds (volatiles) of contrasting plants, as well as their growth stage, influence this pest’s infestation behavior. The chemical contents of volatiles isolated from three plants (Gossypium hirsutum, Abutilon theophrasti, and Ricinus communis) during various growth phases (pre-flowering, fluorescence, and fruiting) were examined, as well as their influence on the behavior of adult B. tabaci. The olfactometer studies demonstrated that growth periods of the three plants affected the preference of B. tabaci. Volatiles of piemarker and cotton plants had dissimilar levels of attraction to adults during all stages. Volatile substances released by the castor at the stage of flowering had repellent effect on B. tabaci. In the plant versus plant combination, piemarker volatiles before and during anthesis were most preferred by adults, followed by cotton and then castor. A total of 24, 24, and 20 compounds were detected from volatiles of piemarker, cotton, and castor, respectively, and proportions among the compounds changed during different stages of plant development. The olfactory responses of B. tabaci to volatile compounds presented that linalool and high concentration of (Z)-3-hexenyl acetate had a strong trapping effect on this pest, while nonanal had a significant repellent effect at high concentration. This study indicates that distinct plants and their growth stage affect their attractiveness or repellency to B.tabaci adults, which are mediated by changing plant volatiles. These compounds obtained by analysis screening can be adopted as potential attractants or repellents to control Mediterranean (MED) B. tabaci.
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Hardiansyah, Muhammad Yusril, Arif Fikri Al Ridho, and Nurhidayat. "The Effect of Garlic (Allium sativum) Extract Pesticides in Repelling Rice Eating Bird Pests." Indonesian Journal of Agricultural Research 3, no. 3 (2020): 145–52. http://dx.doi.org/10.32734/injar.v3i3.3947.
Full textAbstract:
One of the main problems in rice cultivation is the difficulty of controlling bondol bird (Lonchura punctulata) pest attacks. Bird pest is one of the main enemies of farmers that can reduce crop production. Increasing bird populations cause crop yields to decline. So that one way that can be used in repelling bird pests is by giving pesticides from garlic extract. Allicin is a compound that gives garlic its distinctive smell which repels bird pests. This study aims to determine the effect of the provision of plant-based pesticides from garlic extract in repelling rice-eating bird pests. This research was conducted in Tonasa Village, Takalar District, South Sulawesi, Indonesia. Research implementation methods include the manufacture and testing of pesticides liquid extracts of garlic and application in the field by spraying, this spraying is carried out in the morning, afternoon, and evening before making the observations. Observation parameters use the method of comparing initial observations and final observations observed in the morning, afternoon and evening (comparison method) by conducting initial data collection (without using pesticides) and final data collection (after spraying pesticides), the average number of groups of birds that attack 1 Ha of rice fields. The results obtained on average indicate quite a lot of attacks in a day, especially in the morning. After the use of the automatic repellent method the attacks of bondol bird groups tend to decrease where in the morning ratio of 20 to 33 decreases to 5 to 13 attacks, while the ratio of daytime 8 to 15 decreases to 3 to 7 attacks and the ratio of the evening 19 to 33 decreases to 6 to 12 bird group attacks. So that the administration of garlic extract pesticides is effective in reducing bird pest attacks.
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Puu, Yustina Maria Silvia Wonga, and Adrianus A. Janggo. "UJI EFEKTIVITAS BEBERAPA JENIS TANAMAN SEBAGAI PESTISIDA NABATI TERHADAP HAMA GUDANG Callosobrunchus sp." AGRICA 6, no. 1 (2020): 33–42. http://dx.doi.org/10.37478/agr.v6i1.424.
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This research aimed to determine the effectiveness of pesticide plant leaves to the growth of warehouse pest (Callosobrunchus sp)and plant extracts that causes the highest mortality of warehouse pests (CallosobrunchusSp). The design used in this study was a Complete Randomized Block Design (CRBD) with the treatments used are PN0 (aquades), PN1 (Leeksextract), PN2 (extracts of Tagetes), PN3 (leaves Lemongrass Extract). Variable observations in this study are the toxins, contact poisons, nerve poison, repellent and antioviposit. The results showed that the extract of leaves of Tagetes, Lemongrass and Scallion effect on the growth of pest warehouse (Callosobrunchus sp) on observations of Toxins, contact poisons, a nerve poison, repellent and antioviposit. Leaves Tagetes extract is the right plant and effective towards mortality of warehouse pest (Callosobruschus Sp) at 80.89% of poisons contact, the nerve at 84,02%, and 85,05% of repellent activity, antioviposit at 97,6%.