Journal of Plant Diseases and Protection (2020) 127, 73-79

From Pestinfo-Wiki
Jump to: navigation, search

Jonas Pereira Pontes, Germano Leão Demolin Leite, Edilson Paulo Rodrigues Bispo, Wagner de Souza Tavares, Claubert Wagner Guimarães de Menezes, Carlos Frederico Wilcken and José Cola Zanuncio (2020)
A glyphosate-based herbicide in a free-choice test on parasitism, emergence, and female-biased sex ratio of 10 Trichogrammatidae
Journal of Plant Diseases and Protection 127 (1), 73-79
Abstract: Trichogrammatidae (Hymenoptera) egg parasitoids are released for the fall armyworm Spodoptera frugiperda J.E. Smith (Lepidoptera: Noctuidae) management, and weeds are controlled mainly with glyphosate in corn Zea mays L. (Poales: Poaceae) crops. A glyphosate-based herbicide was sprayed at 13.94 L ha-1 on eggs of the worldwide used alternative host, the Mediterranean flour moth Anagasta kuehniella Zeller (Lepidoptera: Pyralidae) parasitized by 10 Trichogrammatidae species, in a free-choice test. Parasitism, female emergence and female-biased sex ratio of these parasitoids were evaluated. Parasitism by Trichogramma acacioi Brun, Moraes and Soares, Trichogramma bennetti Nagaraja and Nagarkatti, Trichogramma brasiliensis Ashmead, Trichogramma galloi Zucchi, and Trichogramma pretiosum Riley was lower with glyphosate. This herbicide reduced the Trichogrammatoidea annulata de Santis, T. bennetti, Trichogramma bruni Nagaraja, Trichogramma demoraesi Nagaraja, T. galloi, and T. pretiosum female emergence. Female-biased sex ratio of T. annulata, T. bennetti, T. bruni, T. galloi, and T. pretiosum was lower with glyphosate. Glyphosate did not reduce the Trichogramma soaresi Nagaraja parasitism and female emergence, and, therefore, the use of this species has potential to be compatible with glyphosate.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Germano L.D. Leite, Wagner de S. Tavares, Claubert W.G. de Menezes, Carlos Frederico Wilcken, José Cola Zanuncio

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
resistance to pesticides


Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Spodoptera frugiperda Maize/corn (Zea mays)
Trichogramma pretiosum (parasitoid)
Trichogramma galloi (parasitoid)
Trichogrammatoidea brasiliensis (parasitoid)
Trichogramma bruni (parasitoid)
Trichogrammatoidea annulata (parasitoid)
Trichogramma demoraesi (parasitoid)
Trichogramma acacioi (parasitoid)
Trichogramma acacioi (parasitoid)
Trichogramma bennetti (parasitoid)