Biology of telenomus pachycoris (Hymenoptera: Scelionidae), a parasitoid of eggs of pachycoris torridus (Hemiptera: Scutelleridae): The effects of egg age, exposure time, and temperature

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Federal de Pelotas-
Autor(es): dc.contributorEmpresa Brasileira de Pesquisa Agropecuária (EMBRAPA)-
Autor(es): dc.contributorUniversidade Federal do Espírito Santo (UFES)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorMuseo de La Plata-
Autor(es): dc.creatorFilho, Raul Da Cunha Borges-
Autor(es): dc.creatorNava, Dori E.-
Autor(es): dc.creatorPratissoli, Dirceu-
Autor(es): dc.creatorPolanczyk, Ricardo A. [UNESP]-
Autor(es): dc.creatorMarangon, Ricardo B.-
Autor(es): dc.creatorLoiácono, Marta-
Data de aceite: dc.date.accessioned2022-08-04T22:06:31Z-
Data de disponibilização: dc.date.available2022-08-04T22:06:31Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2017-06-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1653/024.100.0238-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/220872-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/220872-
Descrição: dc.descriptionTelenomus pachycoris (Johnson) (Hymenoptera: Scelionidae) is a parasitoid of eggs of Pachycoris torridus (Scopoli) (Hemiptera: Scutelleridae), a main pest of physic nut (Jatropha curcas L.; Euphorbiaceae). The objective of this work was to know the biology of T. pachycoris in P. torridus eggs under various conditions in order to develop a rearing technique for this parasitoid in the laboratory. We offered eggs of P. torridus to T. pachycoris during 4 exposition periods (6, 12, 18, and 24 h), as well as eggs of different ages (1 to 11 d), to evaluate, in both experiments, the number of parasitized eggs, duration of the egg-to-adult period, percentage of emergence, and sex ratio. We also evaluated the effect of constant temperatures (18, 20, 22, 25, 28, and 30 °C) and determined the duration of the egg-to-adult period, percentage of emergence, and sex ratio and estimated the thermal requirements and the number of generations per yr of T. pachycoris at each temperature. Parasitism of eggs was the highest at 12 h of exposure. Eggs up to 3 d old were the most parasitized, and the parasitism was zero on day 11. The duration of the egg-to-adult period was inversely proportional to temperature, ranging from 33.6 d at 18 °C to 9.8 d at 30 °C. The threshold temperature estimated for T. pachycoris was 12.9 °C, and the estimated thermal constant was 163.9 degree-days. The number of generations of T. pachycoris ranged from 11.3 to 38.1 per yr at 18 and 30 °C, respectively. The results may contribute to developing techniques for rearing T. pachycoris in the laboratory.-
Descrição: dc.descriptionFaculdade de Agronomia Eliseu Maciel Universidade Federal de Pelotas, Cx. Postal 354-
Descrição: dc.descriptionEmbrapa Clima Temperado, Rodovia Br 396, km 78 Cx. Postal 403-
Descrição: dc.descriptionCentro de Ciências Agrárias Universidade Federal do Espírito Santo, Cx. Postal 16-
Descrição: dc.descriptionFaculdade de Ciências Agrárias e Veterinárias Universidade Estadual Paulista Júlio de Mesquita, Via de Acesso Paulo Donato Castellane s/n-
Descrição: dc.descriptionDivisión Entomologia Museo de La Plata, Paseo del Bosque s/n-
Descrição: dc.descriptionFaculdade de Ciências Agrárias e Veterinárias Universidade Estadual Paulista Júlio de Mesquita, Via de Acesso Paulo Donato Castellane s/n-
Formato: dc.format375-379-
Idioma: dc.languageen-
Relação: dc.relationFlorida Entomologist-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectbiological control-
Palavras-chave: dc.subjectparasitism-
Palavras-chave: dc.subjectphysic nut-
Palavras-chave: dc.subjectrearing technique-
Palavras-chave: dc.subjecttemperature requirement-
Título: dc.titleBiology of telenomus pachycoris (Hymenoptera: Scelionidae), a parasitoid of eggs of pachycoris torridus (Hemiptera: Scutelleridae): The effects of egg age, exposure time, and temperature-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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