Trichogramma acacioi (Hymenoptera, Trichogrammatidae) parasitism capacity at different temperatures and factitious hosts

Revista Brasileira de Entomologia

Dirceu Pratissoli²  Adeney De Freitas Bueno¹  Regiane Cristina Oliveira De Freitas Bueno¹  José Cola Zanúncio¹  Ricardo Antonio Polanczyk² 

[1] ,Universidade Federal do Espírito Santo Centro de Ciências Agrárias Departamento de Produção VegetalAlegre ES ,Brasil

关键词: Biological control;    egg parasitoid;    factitious host;    mass-rearing;    Controle biológico;    criação massal;    hospedeiro alternativo;    parasitóide de ovos;   

DOI  :  10.1590/S0085-56262009000100032

来源: SciELO

【 摘 要 】

It was studied the parasitism capacity of Trichogramma acacioi on Anagasta kuehniella and Sitotroga cerealella eggs at different temperatures (15, 20, 25, 30 and 35 ± 1°C). The parasitism of T. acacioi varied with temperature and host. The highest parasitism (³80%) were observed during the first days after emergence in both hosts, at all tested temperatures. The accumulated parasitism varied with both host and temperature, being higher on A. kuehniella at 20°C, what shows good parasitoid species adaptation to this temperature. Thus, we conclude that the best host and best temperature to be used at mass-rearing of T. acacioi is A. kuehniella and 20ºC, respectively. Moreover, this Trichogramma species has great potential to be used in field releases at regions where average temperature is around 20ºC.

【 授权许可】

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