Relevant bibliographies by topics / Second larval instar

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Academic literature on the topic 'Second larval instar'

Author: Grafiati
Published: 2 June 2025
Last updated: 31 July 2025

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Journal articles on the topic "Second larval instar"

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Mehdi, N. M., H. F. Al-Rubeae, and M. A. Ali. "Laboratory evaluation of azadirachtin isolated from Melia azedarach L. fruits against Anopheles pulcherrimus Theobald (Diptera: Culicidae)." Journal of Biotechnology Research Center 8, no. 2 (2014): 51–56. http://dx.doi.org/10.24126/jobrc.2014.8.2.331.

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Efficacy of different concentration of azadirachtin isolated from fruits of Melia azedarach was investigated on the different stages of Anopheles pulcherrimus under lab. condition. Results showed that there was non-significant reduction in eggs hatching rate. There were high significant in larval mortalities which were depending on concentration. Different larval deformities were found. Second instars larvae were more sensitive then fourth larva instar , LC50 and LC90 for the second instars larvae were 35.99 and 67.99 ppm respectively and for the fourth instars larvae it was 63.09 and 139.8 re
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Yang, Xinya, Guangsheng Li, and Cai Wang. "Evidence of Cuticle Chemicals of Heortia vitessoides (Lepidoptera: Crambidae) Larvae Influencing the Aggregation Behavior of Conspecific Larvae." Insects 15, no. 10 (2024): 746. http://dx.doi.org/10.3390/insects15100746.

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Heortia vitessoides (Lepidoptera: Crambidae) is a severe pest of Aquilaria plants, which produce high-priced agarwood. The larval stage of this pest is gregarious, usually forming large aggregates during young instars and becoming solitary during the fifth instar. We hypothesize that the cuticle chemicals of young-instar H. vitessoides larvae could promote larval aggregating, whereas the cuticle chemicals of late-instar larvae would no longer attract young-instar larvae. In this study, two-choice tests were conducted to evaluate the effect of cuticle extracts of second- and fifth-instar H. vit
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Journal, Baghdad Science. "Response of green lacewing Chrysoperla carnea (Stephens) to various densities of Ephestia cautella (walk)eggs." Baghdad Science Journal 11, no. 3 (2014): 1094–99. http://dx.doi.org/10.21123/bsj.11.3.1094-1099.

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Results of exposure larvae of the most important predator in the integrated pest management , the green lacewings, Chrysoperla carnea (Stephens) to various densities of fig moth Ephestia cautella eggs showed increasing in the number of consumed prey at decreasing rate of increasing prey density where curve slope consumption decreased gradually until leveling off. These specifications concurred with type II functional response that predators appear towards varied densities of its preys ,that was confirm by logistic regression between the proportion of prey eaten in relation to prey offered . Th
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Hamad, Bassim Sh, Sahar A. Kathiar, Ahmed M. Abdullatif, and Ahmed G. Abed. "Response of green lacewing Chrysoperla carnea (Stephens) to various densities of Ephestia cautella (walk)eggs." Baghdad Science Journal 11, no. 3 (2014): 1094–99. http://dx.doi.org/10.21123/bsj.2014.11.3.1094-1099.

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Results of exposure larvae of the most important predator in the integrated pest management , the green lacewings, Chrysoperla carnea (Stephens) to various densities of fig moth Ephestia cautella eggs showed increasing in the number of consumed prey at decreasing rate of increasing prey density where curve slope consumption decreased gradually until leveling off. These specifications concurred with type II functional response that predators appear towards varied densities of its preys ,that was confirm by logistic regression between the proportion of prey eaten in relation to prey offered . Th
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Faria, Lucas Del Bianco, Wesley Augusto Conde Godoy, and Sérgio Furtado dos Reis. "Larval predation on different instars in blowfly populations." Brazilian Archives of Biology and Technology 47, no. 6 (2004): 887–94. http://dx.doi.org/10.1590/s1516-89132004000600008.

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During its larval stage, Chrysomya albiceps (Diptera: Calliphoridae) is a facultative predator on other blowflies. In this study, we evaluated the predation by third instar larvae of C. albiceps on first, second and third instar larvae of Chrysomya megacephala and Cochliomyia macellaria in no-choice experiments in order to compare the vulnerability of larval instars to predation. With first and second instar prey the highest predation rate by C. albiceps was on C. megacephala. For third instar prey, the highest predation rate was on C. macellaria. With second instar prey, there was complete pr
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KHAN, SS, N. SHAH, A. HABIB, et al. "FUNCTIONAL RESPONSE OF LARVAL INSTARS OF CHRYSOPERLA CARNEA (NEUROPTERA: CHRYSOPIDAE) FED ON MACROSIPHUM ROSAE (HEMIPTERA: APHIDIDAE) UNDER LABORATORY CONDITIONS." Biological and Clinical Sciences Research Journal 2024, no. 1 (2024): 1120. http://dx.doi.org/10.54112/bcsrj.v2024i1.1120.

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The functional response of larval instar of Chrysoperla carnea (Neuroptera: Chrysopidae) fed on rose aphids (Macrosiphum rosae) was investigated to check their predatory potential as biological control agent. This study examined the predation patterns of first, second and third larval instars of C. carnea when exposed to varying densities of rose aphids under controlled laboratory conditions at Department of Entomology, University of Agriculture, Faisalabad. The results showed that all larval stages of C. carnea significantly consumed rose aphids M. rosae. The density of rose aphids (Macrosiph
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Maysaroh, Ummi, Edhi Martono, and Tri Harjaka. "The Potency of Metarhizium anisopliae in Disturbing Oryctes rhinoceros (Coleoptera: Scarabaeidae) Growth and Development." Jurnal Perlindungan Tanaman Indonesia 26, no. 1 (2022): 51. http://dx.doi.org/10.22146/jpti.71755.

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Metarhizium anisopliae is one of the most frequently used insect pathogen fungi in controlling Oryctes rhinoceros. This research aims to learn the potency of fungus M. anisopliae against O. rhinoceros larvae growth and development at the laboratory. The research methods used are T-tests comprising seven treatments and three replications. Fungi were applied in all larvae instar stages starting from the pre-molting of the first larvae instar, post-molting of the second larvae instar, active second larvae instar, pre-molting of the second larvae instar, post-molting of the third larvae instar, ac
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Thireau, J. C., J. Régnière, and C. Cloutier. "Biology and morphology of immature stages of Meteorus trachynotus Vier. (Hymenoptera: Braconidae)." Canadian Journal of Zoology 68, no. 5 (1990): 1000–1004. http://dx.doi.org/10.1139/z90-144.

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The immature stages of Meteorus trachynotus Vier., developing in larvae of Choristoneura fumiferana (Clem.), are described. The egg of M. trachynotus is of the stalked type. There are three larval stages. The first instar has a caudal appendage which stops growing in the second instar and is lost when the larva exits from the host in the third instar. Only the first and third instars have sclerotized structures. The head region of the first instar bears a pair of hooklike appendages which are described for the first time. Cephalic sclerites of the last instar larva of other species of Meteorus
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P, Mangammal, and Sri Devi G. "Influence of Artificial Diet on Larvae of Eri Silkworm, Samia cynthia ricini Boisduval." Madras Agricultural Journal 99, JUNE (2012): 390–93. http://dx.doi.org/10.29321/maj.10.100095.

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An Artificial Diet composed of castor leaf powder (11.5 g), parched soybean powder (1.0 g), sucrose (1.0 g), agar-agar (1.5 g), inhibitor solution (5 ml) and water (20 ml) was evaluated against eri silkworm larvae. Castor fed eri silkworms were maintained as control for comparison. Larval weight was significantly maximum in eri silkworms fed with artificial diet upto first instar which was followed by feeding of eri silkworms on artificial diet upto second instar + castor leaves from upto fifth instar and feeding of eri silkworm on artificial diet upto third instar + castor during remaining in
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Barth, Lauren Emily, W. Gary Sprules, Mathew Wells, and Melissa Coman. "Seasonal changes in the diel vertical migration of Chaoborus punctipennis larval instars." Canadian Journal of Fisheries and Aquatic Sciences 71, no. 5 (2014): 665–74. http://dx.doi.org/10.1139/cjfas-2013-0440.

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We describe a novel seasonal shift in the vertical migration behavior of Chaoborus punctipennis second-instar larvae in Lake Opeongo, Ontario. An upward-looking 600 kHz acoustic Doppler current profiler (ADCP) moored at a fixed 22 m station in the lake recorded acoustic backscatter continuously during the study period. Zooplankton samples collected indicated that the abundance of C. punctipennis larval instars accounted for the greatest proportion of variance in the linear backscatter from the ADCP. The large fourth-instar larvae underwent normal diel vertical migration throughout the study. S
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Book chapters on the topic "Second larval instar"

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Kathirithamby, Jeyaraney. "Strepsiptera of Panama and Mesoamerica." In Insects of Panama and Mesoamerica. Oxford University PressOxford, 1992. http://dx.doi.org/10.1093/oso/9780198540182.003.0027.

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Abstract Strepsiptera are unique entomophagous parasitoids with free-living adult males and females that are neotenic and permanently endoparasitic in the host, except in the family Mengenillidae. The hosts include Thysanura, Blattodea, Mantodea, Orthoptera, Hemiptera, Diptera, and Hymenoptera. Of the 532 species described so far, 67 have been recorded from the Neotropics. The first instar larva is free-living and is the host-seeking stage of the parasitoid (Figs 27.2, 27.3). It usually parasitizes a host nymph (if the host is an exopterygote), or a host larva (if the host is an endopterygote)
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Chaudhary, L. S., C. J. Patel, and H. G. Patel. "A REVIEW OF THE BIONOMICS OF FALL ARMYWORM, SPODOPTERA FRUGIPERDA ON MAIZE." In Futuristic Trends in Agriculture Engineering & Food Sciences Volume 3 Book 18. Iterative International Publisher, Selfypage Developers Pvt Ltd, 2024. http://dx.doi.org/10.58532/v3bcag18p4ch2.

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The female placed her eggs in whorls as well as in masses (150–200 eggs per mass) on the underside or the top portion of a maize leaf and on the lid of a glass jar. When the egg mass wasn't coated with scales, it had a layer of scales on it. Under laboratory conditions, the incubation, larval, pre-pupal, and pupal periods were 2 to 3, 13.5 to 23, 2 to 3, and 5 to 8 days, respectively. The duration of the first, second, third, fourth, fifth, and sixth instars was, respectively, 2 to 3, 2 to 3, 2 to 3, 3 to 4, and 3 to 5 days. The larva of the last instar was dark brown with a reddish-brown head
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Kumar, Chetan, and Dr Pragati. "ASSESSMENT OF DIETARY INTAKE OF HEART FAILURE PATIENT." In Futuristic Trends in Social Sciences Volume 3 Book 20. Iterative International Publishers, Selfypage Developers Pvt Ltd, 2024. http://dx.doi.org/10.58532/v3bbso20p7ch1.

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The female placed her eggs in whorls as well as in masses (150–200 eggs per mass) on the underside or the top portion of a maize leaf and on the lid of a glass jar. When the egg mass wasn't coated with scales, it had a layer of scales on it. Under laboratory conditions, the incubation, larval, pre-pupal, and pupal periods were 2 to 3, 13.5 to 23, 2 to 3, and 5 to 8 days, respectively. The duration of the first, second, third, fourth, fifth, and sixth instars was, respectively, 2 to 3, 2 to 3, 2 to 3, 3 to 4, and 3 to 5 days. The larva of the last instar was dark brown with a reddish-brown head
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Kültz, Dietmar. "Crustacean aquaculture." In A Primer of Ecological Aquaculture. Oxford University PressOxford, 2022. http://dx.doi.org/10.1093/oso/9780198850229.003.0011.

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Abstract Crustaceans are aquatic arthropods that grow in steps rather than continuously by moulting (i.e. by replacing their exoskeleton). Although they are taxonomically highly diverse only few species from the order Decapoda are used for commercial seafood production. Small crustaceans from the order Branchiopoda are used as live food in aquaculture hatcheries. Aquaculture of crustaceans is mostly based on semi-intensive pond culture that utilizes coastal wetlands and has been developed unsustainably during the initial period of rapid growth. Crustacean aquaculture ranks second after fish in
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Börzsönyi L´szló, Fodor János, and Farkas Róbert. "Bioinformatical Results Based on Statistical Methods for Endectocide Products Against Fly-larvae." In Studies in Health Technology and Informatics. IOS Press, 2002. https://doi.org/10.3233/978-1-60750-934-9-47.

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The larvicide effects of three endecticide products were studied against house fly larvae. Repeated- measure design was used for the analysis of variance. The observed data followed different distributions. For this reason, instead of the repeated measure ANOVA, three fast statistical methods were applied simultaneously. First, the test for homogeneity was carried out for registered samples by using the Friedman test, and the Wilcoxon-Wilcox test was applied for pairwise comparisons. Secondly, an extended median test was applied for the same problem of test for homogeneity, and the Nem&eac
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Conference papers on the topic "Second larval instar"

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Zavtoni, Pantelimon, and Violetta Goncharuk. "Bacillus thuringiensis var. thuringiensis in combaterea larvelor gândacului din Colorado." In VIIIth International Scientific Conference “Genetics, Physiology and Plant Breeding”. Institute of Genetics, Physiology and Plant Protection, 2024. https://doi.org/10.53040/gppb8.2024.133.

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The action of entomopathogenic bacteria in combination with FP-09 was determined in the fight against the larvae of the first and third instars of the Colorado beetle (Leptinotarsa decemlineata) in the second generation in field conditions on the "Marabel" variety potato crop, where the biological effectiveness of the variant Bacillus thuringiensis 108 + FP-09 constituted 76.6%. And the biological effectiveness of the entomopathogenic suspension of Bacillus thuringiensis in the control of first-third instar larvae in the variant with FP-09 in combating Leptinotarsa decemlineata larvae was 6.8%
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Zavtoni, Pantelimon, Leonid Volosciuc, and Aurelia Stingaci. "Application of the entomopathogenic Bacteria bacillus thuringiensis, Var. thuringiensis and FP-09 against Leptinotarsa decemlineata in potato crops." In Conferința științifică națională cu participare internațională "Integrare prin cercetare și inovare", dedicată Zilei Internaționale a Științei pentru Pace și Dezvoltare. Moldova State University, 2025. https://doi.org/10.59295/spd2024n.23.

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Data were obtained on the application of the entomopathogenic bacterium Bacillus thuringiensis in synergy with FP-09 for the control of Colorado potato beetle on the potato variety Marabel. The action of entomopathogenic bacteria in combination with FP-09 was determined in the control of Colorado potato beetle larvae stages I and III of the second generation Colorado potato beetle (Leptinotarsa decemlineata) under field conditions on potato crop of the variety "Marabel", where the average biological efficacy of Bacillus thuringiensis 108+ FP-09 was 75.9%. The first and third instar larvae cont
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Mitrović, Jelena, Maslovara Đurić, Sanja Martinović, Radić Vukićević, and Marko Popadić. "First detection of invasive mosquito species Aedes japonicus in the territory of the city of Belgrade." In 36. Savetovanje dezinfekcija, dezinsekcija i deratizacija jedan svet - jedno zdravlje, Vrnjačka Banja, hotel "Vrnjačke Terme", 28-31.maj 2025.godine. Srpsko veterinarsko društvo, 2024. https://doi.org/10.5937/ddd25089m.

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Mosquito surveillance which includes monitoring of their presence, developmental stage, abundance and species determination is the first step in the implementation of their control measures. Since 2020. continuous mosquito surveillance in the territory of the city of Belgrade is conducted by Department of Ecology and Environmental Improvement, PUC "City Sanitation" Belgrade. Surveillance is carried out every year from March to October on previously established locations in all Belgrade municipalities. Aedes japonicus (Theobald 1901) invasive mosquito species has become successfully established
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Lychagina, S. V., A. D. Petrova, V. V. Zakharova, and A. N. Konrat. "DETECTING A COLONY OF THE GLOBOSE SCALE (SPHAEROLECANIUM PRUNASTRI FONSC) ON AN APRICOT TREE IN THE MOSCOW REGION." In THEORY AND PRACTICE OF PARASITIC DISEASE CONTROL. VNIIP – FSC VIEV, 2025. https://doi.org/10.31016/978-5-6053355-1-1.2025.26.191-196.

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Globose scales (Coccidae) are plant parasites that live in colonies and are well camouflaged outwardly on the host plant. They can propagate themselves greatly without control and weaken the plant and lead to its death. The climate features of recent decades, with mild winters, allow southern parasitic species to move to more north latitude areas, acclimatize and cause damage. In the Odintsovo District of the Moscow Region, a small colony of 131 specimens was discovered that were identified as the globose scale (Sphaerolecanium prunastri Fonsc) by morphological characteristics. There were alre
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Carli, Agatha Manzi De, and Bruno Paes De-Carli. "Determinação do teor de cinzas, umidade e proteínas de farináceo obtido de larvas do inseto Tenebrio molitor (Coleoptera:Tenebrionidae)." In II Congresso Brasileiro de Biotecnologia On-line. Revista Multidisciplinar de Educação e Meio Ambiente, 2022. http://dx.doi.org/10.51189/conbiotec/02.

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Introdução: O uso de insetos na alimentação humana é um tema bastante polêmico no Brasil. No entanto, a entomofagia é difundida em países asiáticos e norte-americanos. Em relação a ração animal, os insumos a base de insetos são considerados um excelente suplemento alimentar para aves, peixes, anfíbios, entre outros. Do ponto de vista ambiental, a produção de insetos demanda pouca quantidade de água, baixa emissão de CO2 e resíduos, bem como seguridade zoonótica. Objetivos: Determinar o teor de umidade (%), cinzas (%) e proteínas totais (g/L) em amostras de farináceo obtido de larvas de Tenebri
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Kreuzer, Susanne, and Reinhard Niehuis. "Commissioning of Split Power Offtake on a Twin-Spool More Electric Engine Demonstrator." In ASME Turbo Expo 2017: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2017. http://dx.doi.org/10.1115/gt2017-63320.

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More electric and all electric aircraft were already discussed in the eighties of the last century, but recent political and ecological issues now reinforce the electrification of aircraft and engine systems. The development of electric machines and components with increasing power to weight ratio enables the installation of power optimized electric accessories instead of pneumatic and hydraulic systems in order to raise overall efficiency and specific fuel consumption of the engine. While pneumatic and hydraulic components are driven by the aircraft engine, a major challenge is in the supply
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