Academic literature on the topic 'Maize weevils'

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Journal articles on the topic "Maize weevils"

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Bbosa, Denis, Thomas J. Brumm, Carl J. Bern, Kurt A. Rosentrater, and D. Raj Raman. "Evaluation of Hermetic Maize Storage in 208 Liter (55 Gal) Steel Barrels for Smallholder Farmers." Transactions of the ASABE 60, no. 3 (2017): 981–87. http://dx.doi.org/10.13031/trans.12044.

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Abstract. Maize is an important crop for many smallholder farmers in the world. Maize weevils () cause a significant loss in quality and quantity during maize storage, especially in tropical regions. Hermetic storage of maize has been shown to be effective in controlling maize weevils in laboratory and field settings. The objective of this research was to test the effectiveness of steel barrels that could be used by smallholder farmers for hermetic storage. Six 208 L (55 gal) steel barrels were each loaded with 170 kg (375 lb) of maize at an average moisture of 13.4% w.b., with initial weevil
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Bbosa, Denis, Thomas J. Brumm, Carl J. Bern, Kurt A. Rosentrater, and D. Raj Raman. "Effect of Blending Amaranth Grain with Maize Kernels on Maize Weevil Control during Storage." Transactions of the ASABE 63, no. 2 (2020): 401–6. http://dx.doi.org/10.13031/trans.13614.

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HighlightsMixing amaranth grain and maize is a promising pesticide-free method for controlling maize weevils in stored maize.A 1:1 mixture by volume of maize and amaranth reduced the number of live weevils by 66% after 160 d of storage as compared to maize stored without amaranth.A further reduction in live weevils could be achieved by completely covering all maize kernels with a layer of amaranth.Insect-infested maize-amaranth mixtures had reduced spoilage due to mold during storage as compared to insect-infested maize stored without amaranth.Abstract. Amaranth (Amaranthus spp.) is used as a
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Lu, Shaohua, Lingfang Zhang, Yujie Lu, Mingshun Chen, and Zhengyan Wang. "Host Volatiles Potentially Drive Two Evolutionarily Related Weevils to Select Different Grains." Insects 15, no. 5 (2024): 300. http://dx.doi.org/10.3390/insects15050300.

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The Sitophilus zeamais (maize weevil) and Sitophilus oryzae (rice weevil) are two insect pests that have caused huge economic losses to stored grains worldwide. It is urgent to develop an environmentally friendly strategy for the control of these destructive pests. Here, the olfactory-mediated selection preference of the two weevil species to three stored grains was analyzed, which should help establish a pull–push system in managing them. Bioassays showed that maize weevil adults prefer to select maize, followed by paddy and wheat, while rice weevil adults mainly migrate towards wheat. Volati
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Lapcharoensuk, Ravipat, Sattawat Wisetsri, and Supattra Meesuk. "Disinfestation of Sitophilus zeamais Motschulsky in stored maize using microwave." E3S Web of Conferences 187 (2020): 04002. http://dx.doi.org/10.1051/e3sconf/202018704002.

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This study aimed primarily to investigate on disinfestation of maize weevil (Sitophilus zeamais Motschulsky) in maize storage by using microwave method. Specimens of Maize weevils were cultured for 30 days in a maize sample with 17% moisture content (wet basis). Several different life stages of the maize weevil (egg, young larva, old larva, pupa and adult) were then infested in the sample. Next, the maize sample was exposed to 200, 300 and 450 W of microwave power for 60, 120 and 180 s, and the number of weevils were counted after each treatment. Moreover, the sample was kept for another 2 mon
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Silva, Alexandra Avelar, Lucas Soares Braga, Alberto Soares Corrêa, et al. "Comparative cytogenetics and derived phylogenic relationship among Sitophilus grain weevils (Coleoptera, Curculionidae, Dryophthorinae)." Comparative Cytogenetics 12, no. (2) (2018): 223–45. https://doi.org/10.3897/CompCytogen.v12i2.26412.

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Cytogenetic characteristics and genome size are powerful tools for species characterization and identification of cryptic species, providing critical insights into phylogenetic and evolutionary relationships. Sitophilus Linnaeus, 1758 grain weevils can benefit from such tools as key pest species of stored products and also as sources of archeological information on human history and past urban environments. Moreover, the phylogenetic relationship among these weevil species remains controversial and is largely based on single DNA fragment analyses. Therefore, cytogenetic analyses and genome siz
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GEORGESCU, Emil, Cristina FĂTU, Lidia CANA, and Nicoleta BALABAN. "RESEARCH CONCERNING THE EFFECTIVENESS OF THE ENTOMOPATHOGENIC FUNGI FOR CONTROLLING THE MAIZE LEAF WEEVIL (TANYMECUS DILATICOLLIS GYLL) IN THE GREENHOUSE CONDITIONS." "Annals of the University of Craiova - Agriculture Montanology Cadastre Series " 52, no. 1 (2023): 149–60. http://dx.doi.org/10.52846/aamc.v52i1.1328.

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Maize leaf weevil (Tanymecus dilaticollis Gyll) is the most dangerous pest of the maize crop in the south and southeast of Romania. Each year there were attacked one million hectares cultivated with maize were. In case of high pest pressure, weevils can destroy maize plants. After the ban on neonicotinoids, no active ingredients are available in Romania for maize seed treatments to control this pest. This study there were evaluated the effectiveness of three entomopathogenic fungi, Beauveria bassiana (strains BbTd, BbTy), B. pseudobassiana (BpPA), and Metarhizium anisopliae (MaF), for controll
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Silva, Alexandra Avelar, Lucas Soares Braga, Alberto Soares Corrêa, et al. "Comparative cytogenetics and derived phylogenic relationship among Sitophilus grain weevils (Coleoptera, Curculionidae, Dryophthorinae)." Comparative Cytogenetics 12, no. 2 (2018): 223–45. http://dx.doi.org/10.3897/compcytogen.v12i2.26412.

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Cytogenetic characteristics and genome size are powerful tools for species characterization and identification of cryptic species, providing critical insights into phylogenetic and evolutionary relationships.SitophilusLinnaeus, 1758 grain weevils can benefit from such tools as key pest species of stored products and also as sources of archeological information on human history and past urban environments. Moreover, the phylogenetic relationship among these weevil species remains controversial and is largely based on single DNA fragment analyses. Therefore, cytogenetic analyses and genome size
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Sebayang, Amelia, Ayyub Arrahman, Syahrir Pakki, and M. Sudjak Saenong. "Foraging ability of maize weevil in several varieties under dark and light conditions." IOP Conference Series: Earth and Environmental Science 911, no. 1 (2021): 012055. http://dx.doi.org/10.1088/1755-1315/911/1/012055.

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Abstract Laboratory research to investigate the ability of maize weevil to find food source in the dark and light condition had been conducted in laboratory of pests and plan diseases of Indonesian Cereals Research Institute, Maros, South Sulawesi. This research was arranged in complete random design with three replications. There were six maize varieties put into small glasses and placed in circle within big jar and then invested with 100 heterogenous adult maize weevils in each jar. As a control, an empty glass was put in the center of glasses circle within the jar. Observation and calculati
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Georgescu, Emil, Maria Toader, Lidia Cană, et al. "Researches Concerning the Effectiveness of the Maize Foliar Treatment Compared With Seeds Treatment for Chemical Control of the Maize Leaf Weevil (Tanymecus Dilaticollis Gyll) in the South-East of Romania." Romanian Agricultural Research 38 (2021): 357–69. http://dx.doi.org/10.59665/rar3838.

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Maize leaf weevil [(Tanymecus dilaticollis (Gyllenhal, 1834)] represents one of the most dangerous pests of the maize crops in Romania. Each year, around one million hectares cultivated with maize are attacked by this pest with different levels of attack intensities. In the case of the high weevils invasion, the maize seedlings could not survive, and the farmers have to sow their fields again, causing unexpected costs. Spring drought and higher temperatures that usually occur in Romania's south-east is even more favorable circumstances for the weevils attack. Also, maize monoculture has an inc
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Maredia, K. M., J. A. Mihm, and A. Tasistro. "Maize Weevil Control, 1987." Insecticide and Acaricide Tests 14, no. 1 (1989): 207–8. http://dx.doi.org/10.1093/iat/14.1.207.

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Abstract In Test 1, 19 treatments were applied to uninfested grain of‘Across 8363 QPM’ maize (11% moisture) in December 1986. Each treatment consisted of 1.0 kg of grain, divided into 4 replicate batches of 250 g each in pint glass jars (lids ventilated with screen apertures). They were held at 25 ± 1°C and 60-80% RH. Each replicate jar was infested with 50 ± 2 newly emerged, unsexed weevils 10 DAT, and mortality was recorded after a 7-d exposure period. The treatments with high initial mortality were reinfested with 50 ± 2 weevils/jar 3 months after treatment. Treatments giving only partial o
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Dissertations / Theses on the topic "Maize weevils"

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Morais, Alexandre Augusto de. "Epistasia na herança da resistência do milho ao gorgulho Sitophilus zeamais (Coleoptera: Curculionidae)." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/11/11137/tde-18092012-103000/.

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Considerado um dos aspectos mais complexos da genética quantitativa, a epistasia tem sido ignorada pelos melhoristas nos estudos de herança dos caracteres, principalmente os da herança da resistência de plantas a insetos, que são de difícil obtenção. No milho, a principal praga de grãos é o Sitophilus zeamais (Coleoptera: Curculionidae), devido a sua capacidade de atacar grãos tanto no campo quanto em silos. Contudo, as estimativas dos componentes aditivo e de dominância envolvidos na herança dessa resistência podem estar viesadas pela presença do efeito da epistasia. Utilizando o delineamento
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Ribeiro, Leandro do Prado. "Biosprospecção de extratos vegetais e sua interação com protetores de grãos no controle de Sitophilus zeamais Mots. (Coleoptera: Curculionidae)." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/11/11146/tde-10022011-163406/.

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Objetivou-se, no presente estudo, avaliar a ação de extratos orgânicos e frações de plantas com atividade inseticida, bem como, a associação de extratos orgânicos brutos com terra de diatomácea no controle de Sitophilus zeamais Mots. (Coleoptera: Curculionidade), em milho armazenado. Os extratos foram obtidos por meio de maceração em solventes orgânicos (hexano, diclorometano e etanol), em ordem crescente de polaridade, das seguintes estruturas e espécies vegetais: ramos, folhas e sementes de Annona montana e de A. mucosa; ramos de Aristolochia cf. paulistana e folhas e ramos de Casearia sylve
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Serratos, H. J. Antonio. "Resistance of indigenous races of maize to infestation by maize weevil, Sitophilus zeamais Motsch." Thesis, University of Ottawa (Canada), 1987. http://hdl.handle.net/10393/5361.

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Araújo, Rúbia Aparecida de. "Molecular actions of pyrethroids on ion channels in the maize weevil, Sitophilus zeamais." Thesis, University of Nottingham, 2010. http://eprints.nottingham.ac.uk/11604/.

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Previous studies on the mechanism of action of pyrethroids have confirmed that voltage-gated sodium channels (VGSC) in the axon membrane are the major target site of these compounds. The use of pyrethroids to control maize weevils, Sitophilus zeamais, a major pest of stored maize in Brazil, has led to the occurrence of resistance. The work described here seeks to establish whether changes in VGSC of S.zeamais can explain pyrethroid resistance. The S. zeamais homologue of the Drosophila para VGSC was identified using degenerate primers and sequenced. Resistance mutations were examined by sequen
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Ukeh, Donald A. "The identification and use of semiochemicals for the control of the maize weevil, Sitophilus zeamais (Motschulsky) in Nigeria." Thesis, Available from the University of Aberdeen Library and Historic Collections Digital Resources, 2008. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?application=DIGITOOL-3&owner=resourcediscovery&custom_att_2=simple_viewer&pid=25167.

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Howard, Christina S. "The Impact of the Strawberry Bud Weevil (Anthonomus signatus) on Raspberry (Rubus idaeus) in Maine." Fogler Library, University of Maine, 2007. http://www.library.umaine.edu/theses/pdf/HowardCS2007.pdf.

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Tavares, Márcio Aurélio Garcia Correia. "Bioatividade da erva-de-santa-maria, Chenopodium ambrosioides L. (Chenopodiaceae), em relação a Sitophilus zeamais Mots., 1855 (Col.: Curculionidae)." Universidade de São Paulo, 2003. http://www.teses.usp.br/teses/disponiveis/11/11146/tde-11022003-143346/.

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Este trabalho foi realizado com o objetivo de avaliar a influência do pó e do extrato aquoso de C. ambrosioides sobre o gorgulho-do-milho, S. zeamais. As plantas de C. ambrosioides foram cultivadas na área experimental do Departamento de Entomologia, Fitopatologia e Zoologia Agrícola da ESALQ/USP. Foram obtidos pós de folhas, ramos, frutos e da planta inteira (com frutos), quando a planta apresentava-se no estágio de frutificação. Os insetos utilizados nos ensaios foram obtidos de criação mantida em grãos de trigo. Avaliou-se o efeito do pó das diferentes estruturas vegetais e da planta inteir
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Lahóz, André Capelari. "Eficiência agronômica do Etofenprox no controle de Sitophilus zeamais Motsch., 1855 (Coleoptera: Curculionidae) em grãos armazenados de milho e a relação entre o seu ataque e a variação de umidade e atividade de água dos grãos." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/11/11146/tde-26092008-092930/.

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O gorgulho do milho, Sitophilus zeamais (Motsch., 1855) é a principal praga no armazenamento de milho. Seu controle é feito com a aplicação de inseticidas curativos e ou preventivos, mas o método apresenta inconvenientes relacionados com fatores toxicológicos e de resistência da praga devido ao pequeno número de inseticidas registrados e estes pertencerem a grupos químicos antigos, como os organofosforados e piretróides. Com o objetivo de testar um grupo químico diferente e mais moderno no controle desta praga e analisar a variação de umidade e atividade de água dos grãos de milho no decorrer
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Souza, Felipe Hermínio Oliveira. "Efeitos abióticos na composição do óleo essencial de Lippia gracilis: influência na mortalidade e repelência de Sitophilus zeamais." Pós-Graduação em Agroecossistemas, 2013. https://ri.ufs.br/handle/riufs/6560.

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Abiotic factors may interfere in production of plant secondary metabolites and consequently influence the bioactivity of these compounds on insect pests. Thus, this study aimed to evaluate the influence of different agricultural practices (irrigation, mineral fertilizer and organic manure) in chemical composition of the essential oil (EO) of Lippia gracilis and its effects on the maize weevil Sitophilus zeamais.The chemical compositions of EO from plants of L. gracilis cultured on different treatments were analyzed using GC-MS and GC-FID. The carvacrol was the major component of EO in differen
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Simonetti, Ana Paula Morais Mourão. "Uso de crambe no controle de sitophilus zeamais mots. Em milho armazenado." Universidade Estadual do Oeste do Paraná, 2017. http://tede.unioeste.br/handle/tede/2961.

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Submitted by Neusa Fagundes (neusa.fagundes@unioeste.br) on 2017-08-30T18:44:32Z No. of bitstreams: 1 AnaPaula_Simonetti2016.pdf: 1680112 bytes, checksum: 8140e54ab237046b1634a3b33d12de36 (MD5)<br>Made available in DSpace on 2017-08-30T18:44:32Z (GMT). No. of bitstreams: 1 AnaPaula_Simonetti2016.pdf: 1680112 bytes, checksum: 8140e54ab237046b1634a3b33d12de36 (MD5) Previous issue date: 2017-02-07<br>Maize has been of great importance as a cereal for the whole Brazilian, but not all harvested grains are used immediately, so much of the production is stored. So, pests are among the factors t
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Books on the topic "Maize weevils"

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Throne, James Edward. A bibliography of maize weevils Sitophilus zeamais Metschulsky (Coleoptera: Curculionidae). U.S. Dept. of Agriculture, Agricultural Research Service, 1986.

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Book chapters on the topic "Maize weevils"

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Ndiso, J. B., S. Mugo, A. M. Kibe, R. S. Pathaka, and P. Likhayo. "Determination of Maize Landraces for Resistance to Maize Weevil (Sitophilus zeamais Motschulsky) and Larger Grain Borer (Prostephanus truncates): A Case Study from Kenya." In Emerging Issues in Agricultural Sciences Vol. 6. B P International (a part of SCIENCEDOMAIN International), 2023. http://dx.doi.org/10.9734/bpi/eias/v6/5861b.

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Conference papers on the topic "Maize weevils"

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Vrabič Brodnjak, Urška, and Pasquale Trematerra. "Pasta packaging with bio-based barrier to prevent insect infestation." In 10th International Symposium on Graphic Engineering and Design. University of Novi Sad, Faculty of technical sciences, Department of graphic engineering and design,, 2020. http://dx.doi.org/10.24867/grid-2020-p22.

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The results of the infestation by maize weevil, Sitophilus zeamais (Coleoptera, Curculionidae) in various packages filled with pasta are presented. Three different types of packaging were used, i.e. two paper tubes (a novel one laminated with bio-based polyethylene and one without lamination) and a commercially available polypropylene pillow pouch packaging. Material properties such as moisture and water resistance and compressive strength were analysed. The results obtained showed that adult maize weevils revealed significant preferences to penetrate the pasta packaging through the already ex
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Liu, Zhicai, Guanhong Zhang, Haiying Yang, Muyi Sun, Hao Dang, and Xiaoguang Zhou. "Application of Object Detection Algorithm in Identification of Rice Weevils and Maize Weevils." In the 2018 2nd International Conference. ACM Press, 2018. http://dx.doi.org/10.1145/3234804.3234820.

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Bern, Carl. "Controlling weevils in stored maize by means of physical disturbance." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.105474.

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Paul E Sumner and Steve L Brown. "Non-Chemical Method for Controlling Maize Weevils In Stored Corn In Southeastern United States." In 2008 Providence, Rhode Island, June 29 - July 2, 2008. American Society of Agricultural and Biological Engineers, 2008. http://dx.doi.org/10.13031/2013.25128.

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"Prediction of maize weevil population growth rate." In 2014 ASABE Annual International Meeting. American Society of Agricultural and Biological Engineers, 2014. http://dx.doi.org/10.13031/aim.20141908072.

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Emil, Georgescu. "Maize leaf weevil (Tanymecus dilaticollisGyll): Present situation in Romania." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.110355.

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"IS FLINT CORN NATURALLY RESISTANT TO MAIZE WEEVIL INFESTATION?" In 2014 ASABE Annual International Meeting. American Society of Agricultural and Biological Engineers, 2014. http://dx.doi.org/10.13031/aim.20141897867.

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Aina, Olufisayo A. "Potency ofCitrus paradisirind essential oil against the maize weevil,Sitophilus zeamais." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.111767.

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Musa, Abdulrasak Kanike. "Influence of improved maize genotypes on the survival of maize weevil,Sitophilus zeamais (Motschulsky) (Coleoptera: Curculionidae), in storage." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.105777.

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Abdou Kadi Kadi, Hame. "Assessing efficacy of botanicals to control maize weevil (Coleoptera: Curculionidae) in stored sorghum grain." In 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.114909.

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Reports on the topic "Maize weevils"

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Harms, Nathan, Matthew Purcell, Patrick Hafliger, et al. Surveys in Native and Introduced Ranges (2018–2021) for Natural Enemies of Yellow Floating Heart, Nymphoides peltata Kunth. Engineer Research and Development Center (U.S.), 2024. http://dx.doi.org/10.21079/11681/49424.

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Yellow floating heart (Nymphoides peltata), a widespread aquatic invasive plant in the US, is currently under investigation for biological control development. From 2018 to 2021, we conducted native (Europe: 14 locations; Asia: 80 locations) and introduced (US: 39 locations) range surveys to create a list of candidate agents and collect baseline infestation data for comparison. We genetically characterized populations and determined those most-closely related to US N. peltata were European. However, we found no promising agents in that region, except for previously reported fungal pathogens. I
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