Resumo

PRATISSOLI, Dirceu et al. BIOLOGICAL CHARACTERISTICS OF TRICHOGRAMMA EXIGUUM IN THE EGGS OF ANAGASTA KUEHNIELLA END SITOTROGA CEREALELLA. Idesia [online]. 2010, vol.28, n.1, pp. 39-42. ISSN 0718-3429.  doi: 10.4067/S0718-34292010000100006.

The objective of this work was to evaluate information about biological characteristics of egg of parasitoid Trichogramma exiguum Pinto & Platiner, (Hymenoptera: Trichogrammatidae) on the alternative hosts Anagasta kuehniella Zeller (Lepidoptera: Pyralidae) and Sitotroga cerealella Oliver (Lepidoptera: Gelechiidae) aiming to use in biological control programs. The higher rate of parasitism of the T. exiguum was verified on eggs of A. kuehniella. The viability of eggs was higher on eggs of S. cerealella. There is not influence in both alternative hosts in the sex ratio. Both alternative hosts can be used in massal rearing of T. exiguum, however due to the importance of the rate of parasitism, A. kuehniella is better adapting.

Palavras-chave : insecta; biological control; massal rearing; egg parasitoid.