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15 September 2021 Efficiency of Three Egg Parasitoid Species on Fall Armyworm (Lepidoptera: Noctuidae) in Laboratory and Field Cages
Jannet Jaraleño-Teniente, J. Refugio Lomeli-Flores, Esteban Rodríguez-Leyva, Rafael Bujanos-Muñiz, Susana E. Rodríguez-Rodríguez
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Abstract

Egg parasitoids are the most used natural enemies in biological control of Spodoptera frugiperda (J.E. Smith), a pest of gramineous plants native to the Americas that recently invaded Africa and some countries of Asia. Although Trichogramma pretiosum (Riley) is one of the main species used against this pest, there are other species with equal or greater parasitism potential. The objective of this work was to compare, in laboratory and in field cages, the parasitism of Telenomus remus Nixon, Trichogramma atopovirilia (Oatman and Platner), and T. pretiosum on S. frugiperda eggs. Telenomus remus and T. atopovirilia reached the highest percentages of parasitism in laboratory (>70%) which did not differ statistically from each other. Trichogramma pretiosum had the lowest percentage of parasitism (29%) of the three. In the field cage assays, Te. remus parasitized 30% of the S. frugiperda egg masses, and T. pretiosum parasitized about 7.5% of the egg masses. These results underscore the importance of adequate selection of egg parasitoids for their use in biological control programs by augmentation against S. frugiperda.

Jannet Jaraleño-Teniente, J. Refugio Lomeli-Flores, Esteban Rodríguez-Leyva, Rafael Bujanos-Muñiz, and Susana E. Rodríguez-Rodríguez "Efficiency of Three Egg Parasitoid Species on Fall Armyworm (Lepidoptera: Noctuidae) in Laboratory and Field Cages," Journal of Entomological Science 56(4), 519-526, (15 September 2021). https://doi.org/10.18474/JES20-78
Received: 7 October 2020; Accepted: 14 November 2020; Published: 15 September 2021
KEYWORDS
augmentative biological control
Telenomus remus
Trichogramma atopovirilia
Trichogramma pretiosum
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