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Showing 1 to 20 of 25 for “"Cotesia"”.
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Genetic differentiation of the parasitoid, Cotesia congregata (Say), based on host-plant complex
… Genetic differentiation was estimated for Cotesia congregata (Say) collected from two distinct host-plant complexes, Manduca sexta L. on tobacco (Nicotiana tabacum L.) and Ceratomia catalpae, (Haworth) on catalpa (Catalpa bignonioides Walker), in the mid-Atlantic region of North America …
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A study of the parasitism efficiency of Cotesia Vestalis (Haliday) on Diamondback Moth, Plutella Xylostella(L.),(Lepidoptera:Plutellidae)
… agents was done between 1977 and 1984 when Cotesia vestalis and Diadromus collaris from Pakistan were released together with indigenous parasitoid Oomyzus sokolowskii. The results were not successful probably because Cotesia vestalis was not efficient hence the motivation to investigate the …
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Physiological Factors Determining Host Suitability of Lepidopteran Stemborers for Parasitization by Cotesia Flavipes-Complex Parasitoids (Braconidae: Hymenoptera)
The physiological host range of C. flavipes-complex parasitoids will likely be narrow, but exact host range will be difficult to predict. It is the hope that basic biological studies, such as those presented here, will help in the design of host range tests while also providing better understanding …
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Food foraging in adult parasitoid Cotesia rubecula : how sugar sources contribute to survival and reproduction / by Gitta Siekmann.
… in the field by adult female parasitoid wasp, Cotesia rubecula (Hymenoptera, Braconidae), to determine its effect on fecundity and lifespan. In the field, the area in which wasps search for sugar is likely to depend on the degree of association of hosts with nectar or honeydew, supporting the …
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Learning and Olfactory Processing by the Parasitic Wasp, Cotesia Congregata, In Response to Concentration of Herbivore Related Tomato Volatiles
… plant volatiles. Two-day old females of Cotesia congregata (Say) (Hymenoptera: Braconidae) were conditioned by oviposition in larvae of Manduca sexta (Lepidoptera: Sphingidae) and their learned attraction was assayed 18-24 hours after conditioning in a Y-maze olfactometer. Wasps were …
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Tritrophische Interaktionen zwischen transgenem, insektenresistentem Bacillus thuringiensis-Mais, dem Herbivoren Chilo partellus (Lepidoptera: Crambidae) und dem Parasitoiden Cotesia flavipes (Hymenoptera: Braconidae)
… gregären koinobionten larvalen Endoparasitoiden Cotesia flavipes (Hymenoptera: Braconidae) unter Laborbedingungen untersucht. Als Wirt diente Chilo partellus (Lepidoptera: Crambidae). C. partellus ist einer der wirtschaftlich bedeutendsten Schädlinge an Mais und Hirse in Afrika, der mittlerweile …
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Localização e desenvolvimento de Cotesia flavipes em lagartas de Diatraea saccharalis alimentadas com diferentes genótipos de cana- de-açúcar Saccharum sp
… de parasitoides e a proporção de fêmeas de Cotesia flavipes emergidas de lagartas de Diatraea saccharalis alimentadas com plantas de cana-de-açúcar dos genótipos RB867515 e IM76-228. O número de adultos de C. flavipes foi maior para vespas desenvolvidas em lagartas alimentadas com o genótipo …
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Seasonal abundance and biology of hyperparasites and their hosts associated with Pieris rapae (L.) (Lepidoptera: Pieridae) in the Brassica crop system
… an introduced population of the larval parasite Cotesia rubecula (Marshall) (Hymenoptera: Braconidae). Pieris rapae was found to be active from April to November with possibly six generations per year in this region. It was attacked throughout this period by five generations of the larval …
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Habit Preferences and Fidelity in the Cotesia Flavipes Complex (Hymenoptera: Braconidae): Current Preferences and the Potential for Change Through Learning and Selection
… of three congeneric braconid parasitoids in the Cotesia flavipes complex. These wasps parasitize stemboring larvae (Lepidoptera: Pyralidae & Noctuidae) in grasses and have been used as biological control agents in sugar cane and maize. I show that each of the parasitoids has distinct responses to …
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Investigation of pre- and post-zygotic reproductive barriers between two host-plant complex races of the parasitic wasp Cotesia congregata (Say) [Hymenoptera: Braconidae]
… host-plant complex races of the braconid, Cotesia congregata, originating from hosts on tobacco and catalpa. We compared male responses to female pheromones, elements of male acoustic courtship signals, and breeding success between the two races. Males responded to pheromones from both …
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Ecological studies and pesticide response of <i>Evergestis rimosalis</i> (Guenee) (Lepidoptera: Pyralidae) and its parasitoid <i>Cotesia orobenae</i> Forbes (Hymenoptera: Braconidae)
… oviposition, longevity and fecundity of <i>Cotesia orobenae</i> Forbes (Hymenoptera: Braconidae) were studied. Development time of parasitoid pupae decreased as temperature increased to 35°C. Temperatures between 20 and 25°C were most suitable for parasitoid development, oviposition and …
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Phylogenetics patterns of host utilization in two tropical Microgastrine parasitoid genera (Hymenoptera: Braconidae)
… for two separate microgastrine genera, Cotesia and Parapanteles, the data for which were collected over a number of years by two large scale rearing inventories, the Area de Conservación Guanacaste (ACG) inventory, Costa Rica and the Yanayacu Field Station, Ecuador. Using the 53 …
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Assessment of Infestation levels of Chilo partellus swinhoe(Lepidoptera:Crambidae)on maize and the Impact of its parasitoid cotesia flavipes cameron(Hymenoptera:braconidae)in Sinazongwe District of Zambia
… plants and the abundance of its natural enemy, Cotesia flavipes. This study was carried out during the winter cropping seasons of 2005 and 2006 in four locations where previous releases of C. flavipes had been made. The locations described by intensity of C. flavipes released were: locality 1; …
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Assessment of Infestation levels of Chilo partellus swinhoe(Lepidoptera:Crambidae)on maize and the Impact of its parasitoid cotesia flavipes cameron(Hymenoptera:braconidae)in Sinazongwe District of Zambia
… plants and the abundance of its natural enemy, Cotesia flavipes. This study was carried out during the winter cropping seasons of 2005 and 2006 in four locations where previous releases of C. flavipes had been made. The locations described by intensity of C. flavipes released were: locality 1; …
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Sublethal effects of Bacillus thuringiensis Berliner on the diamondback moth, Plutella xylostella (L.), and its natural enemy, Cotesia plutellae Kurdjumov : implications for resistance management / by Lynne Grbin.
… xylostella L. (Lepidoptera: Plutellidae), Cotesia plutellae Kurdjumov (Hymenoptera: Braconidae) and the microbial insecticide, Bacillus thuringiensis Berliner. A deterministic simulation model is developed describing the influence of C. plutellae on the evolution of resistance to Bt in a …
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Studies on Conura torvina (Hymenoptera: Chalcididae) Reproduction and biology in Relation to Hosts in Brassica Crops
… Plutellidae) and was found as a hyperparasite of Cotesia rubecula (Marshall) (Hymenoptera: Braconidae) and several other parasitoid species. Cotesia rubecula was introduced into Virginia in 1987 as a biological control agent for Pieris rapae (L.) (Lepidoptera: Pieridae), and because C. torvina was …
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Impact of the microbial pesticide Bacillus thruingiensis Berliner subsp. kurstaki on Hymenopterous parasites of the imported cabbageworm, Pieris rapae (L.) (Lepidoptera: Pieridae)
… of P. rapae by the larval parasite Cotesia glomerata (L.) (Hymenoptera: Braconidae) and the pupal parasite Pteromalus puparum (L.) (Hyrnenoptera: Pteromalidae) continued after spraying in the B. thuringiensis plots, but was not significantly different from perrnethrin. However, 100% …
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Integration of High Residue/No-till and Farmscaping Systems in Organic Production of Broccoli
… treatments. High numbers of beneficial insects (Cotesia glomerata, Cotesia orobenae and Diadegma insulare) kept the primary insect pest population (Pieris rapae, Evergestis rimosalis (Guenee), and Plutella xylostella) at a pest to predator ratio below 4:1. Although the excellent insect pest …
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Evaluación de niveles de daño, causados por el barrenador de la caña de azúcar (Diatraea spp.) y su parasitismo natural durante Julio-Diciembre de 1995 en el Ingenio Benjamin Zeledon, Rivas
… parasitoides larvales: Billaea claripalpis Wulp, Cotesia flavipes Camerón y Apanteles diatraeae Muesebeck. Aunque no se pudo determinar la incidencia de los parasitoides ovifagos se determinó la presencia de Telenomus sp. y una especie de la familia Trichogrammatidae en los campos muestreados.
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