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Oviposition sequence and offspring of mated and virgin females of Cotesia flavipes (hymenoptera: braconidae) parasitizing Diatraea saccharalis larvae (lepidoptera: crambidae)
Scaglia, M; Chaud-Netto, J; Brochetto-Braga, M. R; Ceregato, S. A; Gobbi, N; Rodrigues, A.
Afiliação
  • Scaglia, M; Sao Paulo State University. Institute of Biosciences. Department of Biology. Rio Claro. BR
  • Chaud-Netto, J; Sao Paulo State University. Institute of Biosciences. Department of Biology. Rio Claro. BR
  • Brochetto-Braga, M. R; Sao Paulo State University. Institute of Biosciences. Department of Biology. Rio Claro. BR
  • Ceregato, S. A; Sao Paulo State University. Institute of Biosciences. Department of Ecology. Rio Claro. BR
  • Gobbi, N; Sao Paulo State University. Institute of Biosciences. Department of Ecology. Rio Claro. BR
  • Rodrigues, A; Sao Paulo State University. Institute of Biosciences. Department of Biology. Rio Claro. BR
J. venom. anim. toxins incl. trop. dis ; J. venom. anim. toxins incl. trop. dis;11(3): 283-298, jul.-set. 2005. tab, graf
Article em En | LILACS | ID: lil-414926
Biblioteca responsável: BR33.1
ABSTRACT
Large scale mass rearing of natural enemies has been a mean of improving biological control in the sugarcane intensive agriculture. Among them, Cotesia flavipes, a gregarious koinobiont endoparasitoid, was imported by Brasil to control caterpillars of the sugarcane borer Diatraea saccharalis. The C. flavipes larval development depends on its association with polydnavirus, which blocks the host defense reaction. To verify if the oviposition sequence (1st, 2nd or 3rd) and the female condition (mated or virgin) interfere in the number of C. flavipes descendents, 4th instar caterpillars of D. saccharalis were parasitized. Analysis of the data showed that a) there is an inverse correlation between the parasitism efficiency and the host reaction (encapsulation); b) the number of caterpillars parasitized by virgin females that released parasitoid larvae in the period from 12 to 15 days was higher than that of caterpillars parasitized by mated females; c) a slight difference between mated and virgin females in relation to the parasitim success was observed; and d) the number of encapsulated parasitoid larvae was higher than that of eggs, suggesting that eggs have a better capacity to overcome the host reaction. In this study, the viability of C. flavipes eggs and larvae in the non-specific host D. saccharalis could be correlated with the oviposition sequence and the female condition
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Texto completo: 1 Coleções: 01-internacional Base de dados: LILACS Assunto principal: Parasitos / Doenças Parasitárias Limite: Animals Idioma: En Revista: J. venom. anim. toxins incl. trop. dis Assunto da revista: TOXICOLOGIA Ano de publicação: 2005 Tipo de documento: Article País de afiliação: Brasil País de publicação: Brasil
Texto completo
Adicionar na Minha BVS
Imprimir
XML
Buscar no Google
Texto completo: 1 Coleções: 01-internacional Base de dados: LILACS Assunto principal: Parasitos / Doenças Parasitárias Limite: Animals Idioma: En Revista: J. venom. anim. toxins incl. trop. dis Assunto da revista: TOXICOLOGIA Ano de publicação: 2005 Tipo de documento: Article País de afiliação: Brasil País de publicação: Brasil