Academic literature on the topic 'Phytophagous larvae'

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Journal articles on the topic "Phytophagous larvae"

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Markina, Tetiana, Evgenia Golub, and Olga Panchenko. "STUDY OF THE EFFICIENCY AND COMPARATIVE ANALYSIS OF THE APPLICATION OF TECHNIQUES FOR EVALUATING THE QUALITY OF PHYTOPHAGES AND ENTOMOPHAGES AT DIFFERENT STAGES OF ONTOGENESIS." Scientific and Technical Bulletin of the Institute of Animal Science NAAS of Ukraine, no. 131 (2024): 116–27. http://dx.doi.org/10.32900/2312-8402-2024-131-116-127.

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The concept of quality control of insect crops is proposed, which is based on a targeted approach based on the goal and objectives of the implementation of a certain breeding program and is divided into two main directions: control of phytophage production, control of entomophage production. Quality control methods are based on the general biological rule of dependence between the intensity of insect taxis and the overall viability of biomaterial. The effectiveness of methods for assessing the quality of phytophages (on the example of the mother cultures of the grain moth Sitotroga cerealella,
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Ronquist, Fredrik, Johan A. A. Nylander, Hege Vårdal, and José Luis Nieves-Aldrey. "Life history of Parnips and the evolutionary origin of gall wasps." Journal of Hymenoptera Research 65 (August 27, 2018): 91–110. http://dx.doi.org/10.3897/jhr.65.24115.

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By mechanisms that are still unknown, gall wasps (Cynipidae) induce plants to form complex galls, inside which their larvae develop. The family also includes inquilines (phytophagous forms that live inside the galls of other gall inducers) and possibly also parasitoids of gall inducers. The origin of cynipids is shrouded in mystery, but it has been clear for some time that a key group in making progress on this question is the ‘figitoid inquilines’. They are gall-associated relatives of cynipids, whose biology is poorly known. Here, we report the first detailed data on the life history of a fi
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Harris, M. O., T. P. Freeman, J. A. Moore, et al. "H-Gene-Mediated Resistance to Hessian Fly Exhibits Features of Penetration Resistance to Fungi." Phytopathology® 100, no. 3 (2010): 279–89. http://dx.doi.org/10.1094/phyto-100-3-0279.

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Features shared by host-specific phytophagous insects and biotrophic plant pathogens include gene-for-gene interactions and the ability to induce susceptibility in plants. The Hessian fly shows both. To protect against Hessian fly, grasses have H genes. Avirulent larvae die on H-gene-containing resistant plants but the cause of death is not known. Imaging techniques were used to examine epidermal cells at larval attack sites, comparing four resistant wheat genotypes (H6, H9, H13, and H26) to a susceptible genotype. Present in both resistant and susceptible plants attacked by larvae were small
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Chen, Yan, Pei-Chao Wang, Shuai-Shuai Zhang, et al. "Functional analysis of a bitter gustatory receptor highly expressed in the larval maxillary galea of Helicoverpa armigera." PLOS Genetics 18, no. 10 (2022): e1010455. http://dx.doi.org/10.1371/journal.pgen.1010455.

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Many plant secondary substances are feeding deterrents for insects and play a key role in the selection of host plants. The taste sensilla of phytophagous insects contain gustatory receptor neurons sensitive to deterrents but the molecular basis of deterrent chemoreception remains unknown. We investigated the function of Gr180, the most highly expressed bitter gustatory receptor in the maxillary galea of Helicoverpa armigera larvae. Functional analyses using the Xenopus oocyte expression system and two-electrode voltage clamp revealed that the oocytes expressing Gr180 responded to coumarin. Ti
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Patel, Priya, Bhupendra Kumar, Rekha Upadhyay, Daya Ram Bhusal, and Dinesh Kumar. "Semiochemical tracks of predaceous Coccinellidae (Coleoptera) modulate feeding attributes and assimilation of nutrients in Zygogramma bicolorata (Coleoptera: Chrysomelidae)." Canadian Entomologist 152, no. 3 (2020): 330–41. http://dx.doi.org/10.4039/tce.2020.18.

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AbstractParthenium hysterophorus Linnaeus (Asteraceae) is a toxic weed found abundantly in major agroecosystems of the world. The weed is inhabited by both phytophagous Chrysomelidae (Coleoptera), used as biocontrol agents, and the predaceous Coccinellidae (Coleoptera). The present investigation was designed to assess the feeding attributes and larval development of Zygogramma bicolorata Pallister (Coleoptera: Chrysomelidae) in the presence of semiochemical tracks of coccinellid beetles. Results revealed that the presence of coccinellid semiochemical tracks on the weed reduced larval consumpti
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Ronquist, Fredrik, Johan A. A. Nylander, Hege Vårdal, and José Luis Nieves-Aldrey. "Life history of Parnips and the evolutionary origin of gall wasps." Journal of Hymenoptera Research 65 (August 27, 2018): 91–110. https://doi.org/10.3897/jhr.65.24115.

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By mechanisms that are still unknown, gall wasps (Cynipidae) induce plants to form complex galls, inside which their larvae develop. The family also includes inquilines (phytophagous forms that live inside the galls of other gall inducers) and possibly also parasitoids of gall inducers. The origin of cynipids is shrouded in mystery, but it has been clear for some time that a key group in making progress on this question is the 'figitoid inquilines'. They are gall-associated relatives of cynipids, whose biology is poorly known. Here, we report the first detailed data on the life history of a fi
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Leggo, Jonathan J., and Joseph D. Shorthouse. "Development of stem galls induced by Diplolepis triforma (Hymenoptera: Cynipidae) on Rosa acicularis (Rosaceae)." Canadian Entomologist 138, no. 5 (2006): 661–80. http://dx.doi.org/10.4039/n05-086.

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AbstractThe cynipid Diplolepis triforma Shorthouse and Ritchie induces a fusiform, multi chambered stem gall from leaf buds on Rosa acicularis Lindl. in central and western Canada. Galls at all stages of development were fixed and sectioned using botanical histological techniques to illustrate, for the first time, the unique host-modifying abilities of gall-inducing cynipids that distinguish them from other phytophagous insects. Key events in gall ontogeny, whereby D. triforma gains control and redirects the development of attacked host tissues to provide larvae with shelter and food, include
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Arjun, M. S., and S. Gopakumar. "Potential phytophagous insects of Pteridium revolutum (Blume) Nakai, an invasive fern." Journal of Threatened Taxa 13, no. 3 (2021): 18030–34. http://dx.doi.org/10.11609/jott.5157.13.3.18030-18034.

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The article reports an observation on the phytophagous behaviour by the insect larvae of two insect species on a fern, Pteridium revolutum, which is fast emerging as an invasive plant species threatening local biodiversity and wildlife in Kerala State, India.
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Malihi, Yariv, Amnon Freidberg, and Dan Gerling. "Bionomics of the Tamarix leaf beetle, Cryptocephalus sinaita moricei Pic, 1908 (Chrysomelidae: Cryptocephalinae)." Israel Journal of Entomology 44–45 (September 21, 2015): 51–59. https://doi.org/10.5281/zenodo.31231.

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<em>Cryptocephalus sinaita moricei</em> Pic, 1908 is a phytophagous leaf-beetle, whose adults and larvae feed on <em>Tamarix</em> shoots and leaves. After mating, the fe&shy;male oviposits and simultaneously covers each egg with dark anal secretion. Approximately half of the eggs are dropped beneath the tree, while the rest are ad&shy;hered to the tree shoots. The larva constructs a case that apparently provides pro&shy;tection from natural enemies. Developmental duration from the egg to adult takes three months under laboratory conditions at 25 &plusmn; 2 &deg;C. In contrast to most congeners
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Wilson, L. J., L. R. Bauer, and G. H. Walter. "‘Phytophagous’ thrips are facultative predators of twospotted spider mites (Acari: Tetranychidae) on cotton in Australia." Bulletin of Entomological Research 86, no. 3 (1996): 297–305. http://dx.doi.org/10.1017/s0007485300052597.

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AbstractPredatory feeding on Tetranychus urticae Koch (Acari: Tetranychidae) populations on cotton by phytophagous thrips, Thrips imaginis Bagnall, T. tabaci Lindeman and Frankliniella schultzei Trybom (Thysanoptera: Thripidae), was investigated in the field and laboratory. Phytophagous thrips are a common early season pest of cotton in Australia, though their true pest status is undefined. In California, the phytophagous thrips (Frankliniella occidentalis (Pergande)) is regarded as an opportunistic predator of mite eggs, their consumption of which increases fitness over a diet of leaf tissue
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Dissertations / Theses on the topic "Phytophagous larvae"

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Charlery, de la Masselière Maud. "Spécialisation d'hôte au sein d'une communauté d'insectes phytophages : le cas des Tephritidae à La Réunion." Thesis, La Réunion, 2017. http://www.theses.fr/2017LARE0020/document.

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Les insectes phytophages forment un groupe d’organismes très diversifié et la plupart sont considérés comme spécialistes. Les patrons de spécialisation des insectes vis à vis de leurs plantes hôtes dépendent en partie de leur capacité à interagir avec les plantes (niche fondamentale) et aux facteurs environnementaux modulant ces interactions et aboutissant aux observations en milieu naturel (niche réalisée). La spécialisation fondamentale est déterminée par l'évolution conjointe de deux traits : la performance des larves et la préférence des femelles. Pour comprendre cette spécialisation, nous
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Muller, Karen. "Influence de la plante hôte sur les performances sexuelles des mâles et conséquences sur le potentiel reproductif des femelles phytophages." Thesis, Dijon, 2016. http://www.theses.fr/2016DIJOS021/document.

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L’abondance des insectes phytophages est déterminée par l’influence de facteurs biotiques et abiotiques qui affectent leurs traits d’histoire de vie. Chez les espèces phytophages à reproduction sur capital, la qualité de la plante hôte sur laquelle les individus effectuent leur développement larvaire est un facteur critique affectant le succès reproducteur des adultes. Curieusement, si l’effet de la plante hôte sur le potentiel reproductif des femelles a été largement décrit, il n’a été que peu étudié sur celui des mâles. Par ailleurs, chez les lépidoptères, lors de l’accouplement, la femelle
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Maas, Bea. "Birds, bats and arthropods in tropical agroforestry landscapes: Functional diversity, multitrophic interactions and crop yield." Doctoral thesis, 2013. http://hdl.handle.net/11858/00-1735-0000-0022-5E77-5.

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Books on the topic "Phytophagous larvae"

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Horak, Marianne. Olethreutine Moths of Australia. CSIRO Publishing, 2006. http://dx.doi.org/10.1071/9780643094086.

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Olethreutine moths often have fruit-boring larvae and this economically important group includes many horticultural pests such as codling moths, Oriental fruit moths and macadamia nut borers. This volume is the first reference to describe the 90 olethreutine genera present in Australia. &#x0D; It provides generic definitions, a key to genera, generic descriptions, and illustrations of adults, heads, venation, genitalia of both sexes and other diagnostic structures of all genera. Summaries of biology and distribution and a checklist for all named Australian species are given for each genus. Imp
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Book chapters on the topic "Phytophagous larvae"

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Haque, Ziaul, and Mujeebur Rahman Khan. "Anguinidae: Anguina and Ditylenchus species." In Handbook of invasive plant-parasitic nematodes. CABI, 2021. http://dx.doi.org/10.1079/9781789247367.0002.

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Abstract The gall-forming nematodes, Anguina spp., are obligate parasites and attack aerial plants parts of cereals and forage grasses. The genus Ditylenchus contains a large number of species which are mostly myceliophagous. A few species are phytophagous, but are of great importance as they attack more than 1200 species of cultivated and wild plants. This chapter includes information on: geographical distribution; host ranges; symptoms; biology and life cycle; economic importance; movement and means of dispersal; pest risk analysis; invasiveness; management measures; and detailed account of
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Zerova, Marina D., Hassan Ghahari, Victor N. Fursov, Gary A. P. Gibson, and Mikdat Doğanlar. "Family Eurytomidae Walker, 1832." In Chalcidoidea of Iran (Insecta: Hymenoptera). CABI, 2021. http://dx.doi.org/10.1079/9781789248463.0010.

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Abstract Species of Eurytomidae are associated with many communities of phytophagous insects, many being phytophagous (gall inducers, inquilines or seed feeders) and causing different types of injury to plants, others being entomophagous, including parasitoids of a wide range of insect hosts in the orders Coleoptera, Diptera (mainly Cecidomyiidae), Hymenoptera (Aculeata) and Lepidoptera, and even some being recorded from spider (Araneae) and cicada (Hemiptera) eggs. This chapter provides a checklist for the family Eurytomidae. It provides information on species diversity, host records, distrib
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Zerova, Marina D., Hassan Ghahari, Victor N. Fursov, Gary A. P. Gibson, and Mikdat Doğanlar. "Family Eurytomidae Walker, 1832." In Chalcidoidea of Iran (Insecta: Hymenoptera). CABI, 2021. http://dx.doi.org/10.1079/9781789248463.0225.

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Abstract Species of Eurytomidae are associated with many communities of phytophagous insects, many being phytophagous (gall inducers, inquilines or seed feeders) and causing different types of injury to plants, others being entomophagous, including parasitoids of a wide range of insect hosts in the orders Coleoptera, Diptera (mainly Cecidomyiidae), Hymenoptera (Aculeata) and Lepidoptera, and even some being recorded from spider (Araneae) and cicada (Hemiptera) eggs. This chapter provides a checklist for the family Eurytomidae. It provides information on species diversity, host records, distrib
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Harris, Keith M. "Gall midges (Cecidomyiidae): classification and biology." In Plant Galls. Oxford University PressOxford, 1994. http://dx.doi.org/10.1093/oso/9780198577690.003.0012.

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Abstract The Cccidomyiidae probably originated in the Mesozoic age from a group of Diptera with mycophagous larvae. The family is almost certainly monophyletic and of the three extant subfamilies, the Lestremiinae and Porricondylinae are still essentially mycophagous, with larvae feeding on macrofungi and on fungal mycelium in soil, in decaying wood, and in other dead organic matter. The third subfamily, the Cecidomyiinae, contains the greatest number of species and exhibits the greatest biological diversity. It must have evolved rapidly with flowering plants in the Cenozoic. Most of the inclu
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Claridge, Michael F., and Hassan Ali Dawah. "Assemblages of herbivorous chalcid wasps and their parasitoids associated with grasses-problems of species and specificity." In Plant Galls. Oxford University PressOxford, 1994. http://dx.doi.org/10.1093/oso/9780198577690.003.0019.

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Abstract Most chalcid wasps are parasitoids, but the family Eurytomidae includes many herbivores. Of the numerous species of Tetramesa in temperate regions, all arc phytophagous and, so far as known, use only grasses as their host plants. Many of these form distinctive galls in which their larvae feed. Others feed within developing flowering stems without accompanying gall formation. Tetramesa larvae arc attacked by a series of characteristic parasitoids including species of Pediobius (Eulophidae), Chlorocytus and Homoporus (Pteromalidae), and Eurytoma and Sycophila (Eurytomidae). Taxonomy of
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Itö, Yosiaki. "Systematics and sociality of wasps." In Behaviour and Social Evolution of Wasps. Oxford University PressOxford, 1993. http://dx.doi.org/10.1093/oso/9780198546832.003.0002.

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Abstract The order Hymenoptera is divided into two suborders, Symphyta and Apocrita, and the latter is further divided into Terebrantia and Aculeata. Eusociality only occurs in the Aculeata and one group of the Terebrantia, the Chalcidoidea, in which one species, Capidosomopsis tanytmemus has sterile, defensive larvae, like aphid soldiers (Cruz 1981 ).The designations ‘bee’ and ‘wasp’ respectively refer to phytophagous and mainly carnivorous groups of the Aculeata. The wasps include species belonging to many different systematic groups (e.g. Bethyloidea, Sphecormis group, and Vespoidea; in add
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A. Uchoa, Manoel, Morgana F. Wachter-Serapião, and Nádia Roque. "Feeding by Florivorous Flies (Tephritidae and Agromyzidae) in Flower Heads of Neotropical Asteraceae (Asterales) from Central Brazil." In The Wonders of Diptera - Characteristics, Diversity, and Significance for the World's Ecosystems. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.96412.

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The four following Diptera families are peculiar because they are predominantly phytophagous: Cecidomyiidae, Agromyzidae, Lonchaeidae and Tephritidae; which is uncommon for dipterans. Tephritine’s larvae, depending on the species, consumes leaves, stems, flowers or roots of their host plants. Some tephritines feeds on flower heads of weed Asteraceae and can act in population suppression of invasive species in cultivated areas. In Mid-West of Brazil, we investigate Tephritinae and Agromyzinae flies in flower heads of Asteraceae species in three different phytophisiognomies in Dourados region, s
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Powell, R. J., and D. J. Stradling. "The Selection And Detoxification Of Plant Material By Fungus-Growing Ants." In Ant-Plant Interactions. Oxford University PressOxford, 1991. http://dx.doi.org/10.1093/oso/9780198546399.003.0003.

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Abstract Most phytophagous insects have digestive systems which are adapted to cope with a limited range of plant chemical defences and are monophagous or oligophagous. However, the ability to fly over relatively large distances facilitates the search for specific food plants. It is advantageous for walking, centre-place foragers like ants to have less specialized diets, and among plant-feeding insects the leaf-cutting ants probably contain the only truly polyphagous species.
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Goulson, Dave. "Introduction." In Bumblebees. Oxford University PressOxford, 2009. http://dx.doi.org/10.1093/oso/9780199553068.003.0001.

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Abstract Bees (Superfamily Apoidea) belong to the large and exceedingly successful insect order Hymenoptera, which also includes wasps, sawflies and ants. There are currently approximately 25,000 known species of bee, belonging to over 4,000 genera, and undoubtedly many more remain to be discovered. All bees are phytophagous, feeding primarily on nectar and pollen throughout their lives. While many other insects feed on nectar or pollen as adults, very few do so throughout their development. This is simply because pollen and nectar, although nutritious, are sparsely distributed in the environm
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Conference papers on the topic "Phytophagous larvae"

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Zavtoni, Pantelimon. "Utilizarea capcanelor cu dispensor și lumină in scopul transmiterii pe orezontală a baculovrusurilor la dăunători." In International Scientific Symposium "Plant Protection – Achievements and Prospects". Institute of Genetics, Physiology and Plant Protection, Republic of Moldova, 2020. http://dx.doi.org/10.53040/9789975347204.24.

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A positive role in the spread of viruses on the leaves can be played by parasitic and predatory insects, which come in contact with dead larvae, take over the polyhedra on their bodies and spread them in the host's biotope. Phytophagous insects were used for research: Mamestra brassicae and Heliothis armigera. As an experimental material served biological baculoviral preparations based on the genus Baculoviridae family that differ from other biological preparations, have an epizootic character and transmit the pathogen vertically and horizontally in decreasing populations of harmful insects fr
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Nastas, Tudor, O. Geletiuk, Iuliana Rusu, and Aliona Gavriliuck. "Sexual and reproductive correlation of the population of the Agrotis segetum (den. Et Schiff.)." In Scientific International Symposium “Advanced Biotechnologies - Achievements and Prospects” (VIth Edition). Institute of Genetics, Physiology and Plant Protection, 2022. http://dx.doi.org/10.53040/abap6.2022.70.

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Ecosystem functionally is ensured by the relationships between the species that make them and their interactions with abiotic factors. The existence and activity of any pest population is determined by the consumption of the necessary nutrients. About 140 species of phytophagous attack cultivated plants. In the event of an invasion and development of the hazardous pests, crop losses can exceed 50-60% and crops can be completely compromised. Climate change is a key that requires urgent action to change attitudes towards the environment. In this regard, the role of science and research is huge t
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Gyrnets, E. Yu, and A. M. Asaturova. "SCREENING OF BACTERIAL STRAINS IN RELATION TO THE LABORATORY POPULATION OF THE LARGE WAX MOTH GALLERIA MELLONELLA L. AND THE NATURAL POPULATION OF THE APPLE MOTH CYDIA POMONELLA L." In X Международная конференция молодых ученых: биоинформатиков, биотехнологов, биофизиков, вирусологов и молекулярных биологов — 2023. Novosibirsk State University, 2023. http://dx.doi.org/10.25205/978-5-4437-1526-1-68.

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Studies have been conducted to assess the insecticidal activity of bacterial strains from the of the bioresource collection of the Federal Research Center of Biological Plant Protection “State Collection of Entomoacariphages and Microorganisms”. The experiments were carried out under laboratory conditions in relation to a laboratory test object of the large wax moth Galleria mellonella L. and an economically significant phytophagus — the natural population of the apple fruit moth Cydia pomonella L.
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Timuş, Asea, and Elena Baban. "Entomofauna speciei Rosa canina l. din zona de centru a Republicii Moldova." In International symposium ”Actual problems of zoology and parasitology: achievements and prospects” dedicated to the 100th anniversary from the birth of academician Alexei Spassky. Institute of Zoology, Republic of Moldova, 2018. http://dx.doi.org/10.53937/9789975665902.79.

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In the work are exposed investigations in 2007-2017 of entomofauna with development on the species Rosa canina L. from various urban and rural biotopes in the center of the Republic of Moldova. In total, were recorded 52 species of insects in 9 orders (Orthoptera, Homoptera, Hemiptera, Thysanoptera, Coleoptera, Neuroptera, Lepidoptera, Hymenoptera, Diptera) and 1 mite (Trombidiformes). Of these, 17 species of insects have developed large populations and impact on the rose, 12 insect species developed annual faunistic populations, 12 solitary and rare individuals, 2 species one individual. At t
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Grudinin, Dmitriy A., and Elena N. Kuzmina. "CREATION OF A REGISTRY OF HORSE-FLIES AND GADFLIES JCCURRED IN THE ORENBURG REGION, ACTING AS PATHOGENS OF ENTOMOSES IN LARGE UNGULATES." In Treshnikov readings – 2022 Modern geographical global picture and technology of geographic education. Ulyanovsk State Pedagogical University named after I. N. Ulyanov, 2022. http://dx.doi.org/10.33065/978-5-907216-88-4-2022-29-31.

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In this report we compiled a species composition database relating to arachnoentomosis pathogens in animals living in the Orenburg region and potentially dangerous for the implementation of projects for the conservation movement of large phytophages. Horse-flies (family Tabanidae) are represented by two subfamilies, seven genera and twenty-eight species of blood-sucking insects. Gad-flies are represented by three families (Hypodermatidae, Gastrophilidae, and Oestridae), six genera, and twelve species.
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Zeynalov, A. S., L. G. Danilov, T. N. Churilina, D. S. Orel, and M. V. Vinokur. "PARASITIC NEMATODES, BACTERIA, AND NEMATODE-BACTERIAL ASSOCIATIONS IN SUPPRESSING THE DEVELOPMENT OF SECRETIVE PHYTOPHAGANS OF FRUIT AND BERRY CROPS." In THEORY AND PRACTICE OF PARASITIC DISEASE CONTROL. VNIIP – FSC VIEV, 2025. https://doi.org/10.31016/978-5-6053355-1-1.2025.26.111-115.

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For the first time in the Russian Federation, highly effective biological methods have been developed to suppress caterpillars and pupae of the apple worm (Cydia pomonella L.), larvae of the currant borer beetle (Agrilus ribesi Shafer), and larvae of root weevils (Otiorhynchus sp.). Entomopathogenic nematodes Steinernema carpocapsae (Weiser) and Steinernema feltiae (Filipjev), autoclaved and live cultures of entomopathogenic bacteria Xenorhabdus bovienii and Xenorhabdus nematophila, together with and without the nematodes were used as biological agents. Bioagents were applied to different subs
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Barkar, Vitalii, Tetiana Markina, Volodymyr Bulgakov, Aivars Aboltins, Adolfs Rucins, and Anatoliy Zaryshnyak. "Study of Propylea quatuordecimpunctata feed consumption dynamics at various stages of ontogenesis in rearing technology." In 24th International Scientific Conference Engineering for Rural Development. Latvia University of Life Sciences and Technologies, Faculty of Engineering and Information Technologies, 2025. https://doi.org/10.22616/erdev.2025.24.tf021.

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The development of rearing technologies for the agents of biological control of crop pests is an important and urgent task, the solution of which lies at the intersection of the engineering and the biological sciences. One of the promising agents for the biological control of aphids is lady beetle Propylea quatuordecimpunctata. In this study, the feed consumption rate of Propylea quatuordecimpunctata was investigated during the development of its rearing technology. Tests were carried out for larval and adult stages of the entomophage. Wheat aphid (Schizaphis graminum) at various stages of dev
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Reports on the topic "Phytophagous larvae"

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Hunter, Martha S., and Einat Zchori-Fein. Rickettsia in the whitefly Bemisia tabaci: Phenotypic variants and fitness effects. United States Department of Agriculture, 2014. http://dx.doi.org/10.32747/2014.7594394.bard.

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The sweet potato whitefly, Bemisia tabaci (Hemiptera: Aleyrodidae) is a major pest of vegetables, field crops, and ornamentals worldwide. This species harbors a diverse assembly of facultative, “secondary” bacterial symbionts, the roles of which are largely unknown. We documented a spectacular sweep of one of these, Rickettsia, in the Southwestern United States in the B biotype (=MEAM1) of B. tabaci, from 1% to 97% over 6 years, as well as a dramatic fitness benefit associated with it in Arizona but not in Israel. Because it is critical to understand the circumstances in which a symbiont invas
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