Age and density of eggs of Helicoverpa armigera influence on Trichogramma pretiosum parasitism
Acta Scientiarum: Biological Sciences, 2017 This study evaluated the parasitism of Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) on eggs of Helicoverpa armigera Hübner (Lepidoptera: Noctuidae) at different ages and densities.
Vitor Zuim +5 more
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Intraguild interactions between two egg parasitoids of a true bug in semi-field and field conditions. [PDF]
PLoS ONE, 2014 Research on interspecific competitive interactions among insect parasitoids has often been characterized by laboratory studies in which host insects are exposed to female parasitoids of different species in various sequences and combinations. In the last
Ezio Peri +4 more
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Phenotypic plasticity and fitness in egg parasitoids [PDF]
Neotropical Entomology, 2010 Several proxies can be used to estimate the fitness of egg parasitoids: size, longevity, fecundity, mating ability and vagility. All these proxies are positively correlated with the lifetime fitness gain of an individual. However, the phenotypic plasticity, which is the ability of a genotype to produce distinct phenotypes depending on environmental ...
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Patterns of abundance in the beneficial insects associated with the fall armyworm Spodoptera frugiperda (J.E. Smith) egg masses in selected Philippines cornfields [PDF]
Journal of Plant Protection ResearchIn February 2022, preliminary field surveys were conducted to characterize patterns of abundance in the beneficial insect populations associated with fall armyworm (FAW) egg masses in selected Philippines corn fields.
Marie Jou B. Beltran +4 more
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The Significance of Background Odour for an Egg Parasitoid to Detect Plants with Host Eggs [PDF]
Chemical Senses, 2005 Scots pine has been shown to produce a volatile bouquet that attracts egg parasitoids in response to oviposition of the herbivorous sawfly Diprion pini. Previous analyses of headspace volatiles of oviposition-induced pine twigs revealed only quantitative changes; in particular, the sesquiterpene (E)-beta-farnesene was emitted in significantly higher ...
Mumm, R., Hilker, M.
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Rapid Establishment of a Regular Distribution of Adult Tropical Drosophila Parasitoids in a Multi-Patch Environment by Patch Defence Behaviour. [PDF]
, 2011 Females of the larval parasitoid of Drosophila, Asobara citri, from sub-Saharan Africa, defend patches with hosts by fighting and chasing conspecific females upon encounter.
Peter W de Jong +15 more
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Comparative study on the egg parasitoids of Erthesina fullo (Thunberg, 1783) (Hemiptera, Pentatomidae) in its native and invaded ranges [PDF]
NeoBiotaErthesina fullo (Thunberg, 1783) (Hemiptera, Pentatomidae) is an emerging invasive pest outside its native Asian range, yet little is known about its egg parasitoids. Egg parasitoid assemblages were surveyed from field-collected egg masses of E. fullo in
Francesco Tortorici +10 more
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Egg Parasitoids of Citrus Weevils in Guadeloupe
Florida Entomologist, 2008 To determine parasitism and mortality factors affecting citrus weevils in Guadeloupe an explor atory trip to the island was taken in the summer of 2006. Guadeloupe was surveyed for egg parasi toids and other natural enemies with the intent of augmenting the parasitoid species that have al ready been imported and released to control the citrus root ...
Ulmer, Bryan +3 more
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Comparisons between the squash bug egg parasitoids Ooencyrtus anasae and O. sp. (Hymenoptera: Encyrtidae): development, survival,and sex ratio in relation to temperature [PDF]
, 1987 Citation: Tracy, J. L., and J. R. Nechols. 1987. “Comparisons Between the Squash Bug Egg Parasitoids Ooencyrtus Anasae and O. Sp. (Hymenoptera: Encyrtidae): Development, Survival, and Sex Ratio in Relation to Temperature.” Environmental Entomology 16 (6):
Tracy, J. L., Nechols, James R.
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Egg Collection for Nasonia (Parasitoid Wasp) [PDF]
Cold Spring Harbor Protocols, 2009 INTRODUCTIONNasonia is a complex of four closely related species of wasps with several features that make it an excellent system for a variety of genetic studies. These include a short generation time, ease of rearing, interfertile species, visible and molecular markers, and a sequenced genome.
John H, Werren, David W, Loehlin
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