Density of Trichospilus diatraeae (Hymenoptera: Eulophidae) Parasitizing Diaphania hyalinata (Lepidoptera: Crambidae) Pupae
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
03/12/2014
03/12/2014
01/07/2014
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Resumo |
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Diaphania hyalinata L. (Lepidoptera: Crambidae) is a key pest of plants in the family Cucurbitaceae, defoliating and reducing photosynthetic area and yield. Trichospilus diatraeae Margabandhu & Cherian, 1942 (Hymenoptera: Eulophidae) parasitizes the pupae of this pest, but its biological and reproductive parameters with this host are unknown. The objective of our study was to characterize the reproduction of T. diatraeae in D. hyalinata pupae with different densities of this parasitoid. Individual D. hyalinata pupae (48 h old) were exposed to different densities of T. diatraeae (1:1, 4:1, 8:1, 12:1, 16:1, 20:1, and 24:1). The parasitoid density did not affect the parasitism and emergence rate of this natural enemy. The progeny, sex ratio, longevity, and head capsule width of T. diatraeae males and females decreased with increasing density, and its life cycle was proportional to density increase of T. diatraeae. Densities of up to eight T. diatraeae individuals per D. hyalinata pupae are favorable for the development of this parasitoid. |
Formato |
826-831 |
Identificador |
http://dx.doi.org/10.1603/AN13131 Annals Of The Entomological Society Of America. Annapolis: Entomological Soc Amer, v. 107, n. 4, p. 826-831, 2014. 0013-8746 http://hdl.handle.net/11449/113320 10.1603/AN13131 WOS:000338842600014 |
Idioma(s) |
eng |
Publicador |
Entomological Soc Amer |
Relação |
Annals of the Entomological Society of America |
Direitos |
closedAccess |
Palavras-Chave | #density #Eulophidae #parasitism #mass rearing |
Tipo |
info:eu-repo/semantics/article |