Biology and parasitism of Trichogramma atopovirilia Oatman Platner and Trichogramma pretiosum Riley Hymenoptera, Trichogrammatidae on eggs of Spodoptera frugiperda JE Smith Lepidoptera, Noctuidae Biologia e parasitismo de Trichogramma atopovirilia Oatman Platner e Trichogramma pretiosum Riley Hymenoptera, Trichogrammatidae em ovos de Spodoptera frugiperda JE Smith Lepidoptera, Noctuidae
Beserra, E.B.; Parra, J.R.berto P.
Revista Brasileira de Entomologia. Marco; 481: 119-126
The parasitism capacity and development of Trichogramma atopovirilia Oatman & Platner and Trichogramma pretiosum Riley were studied in order to select the most suitable species to control Spodoptera frugiperda (J. E. Smith). The experiments were conducted under laboratory conditions at 25 plus or minus 2 degrees C, 70 plus or minus 10% RH and 14L:10D photoperiod. Both T. atopovirilia and T. pretiosum showed good development and adaptation to S. frugiperda eggs even after being reared for several generations in eggs of Anagasta kuehniella Zeller. However, T. atopovirilia females were more aggressive and showed higher specificity to the pest, with a higher parasitism capacity in eggs laid with different physical barriers and were more accepted by the natural host in comparison with A. kuehniella. Because of the higher parasitism rate and specificity of T. atopovirilia to the pest's egg this species should be given preference to control S. frugiperda.