Effective Use of Emamectin Benzoate for the Management of Spodoptera frugiperda (J. E. Smith) in Maize

Fátima T. Rampelotti-Ferreira; Leonardo V. Thiesen; Janaina de N. Corassa; Adriana Nardon; Leandro V. dos Santos; Daniel Rosa; Rafael M. Pitta

doi:10.37486/1809-8460.ba12001

Authors

Fátima T. Rampelotti-Ferreira Universidade Federal de Mato Grosso, Av. Alexandre Ferronato, 1200. CEP 78550-728, Sinop-MT https://orcid.org/0000-0002-3118-9446
Leonardo V. Thiesen Universidade de São Paulo, Av. Pádua Dias, 11. CEP 13418-900, Piracicaba-SP, Brasil https://orcid.org/0000-0002-8782-6061
Janaina de N. Corassa Universidade Federal de Mato Grosso, Av. Alexandre Ferronato, 1200. CEP 78550-728, Sinop-MT https://orcid.org/0000-0002-1013-5414
Adriana Nardon Syngenta Proteção de Cultivos. Estrada Municipal HBR 333, s/n, CEP 13825-000, Holambra, SP https://orcid.org/0000-0003-2157-1622
Leandro V. dos Santos Syngenta Proteção de Cultivos. Av. Nações Unidas, nº 17.007 - Torre Sigma -11º andar Bairro Várzea de Baixo, CEP 04730-090, São Paulo, SP https://orcid.org/0000-0003-4856-2144
Daniel Rosa Syngenta Proteção de Cultivos. Rodovia BR452, km 142, CEP 38405-232, Uberlândia, MG https://orcid.org/0000-0003-4996-417X
Rafael M. Pitta Embrapa Agrossilvipastoril. Rodovia MT 222, Km 2,5. Sinop-MT https://orcid.org/0000-0002-8503-7106

DOI:

https://doi.org/10.37486/1809-8460.ba12001

Abstract

Emamectin benzoate has been largely used for controling lepidopterans larvae in grains and fiber crops and, therefore, selection of resistant populations to this pesticide is a real risk if ignored the insect resistance management (IRM) strategies. We studied the susceptibility of Spodoptera frugiperda (Smith, 1797) populations in the state of Mato Grosso - Brazil to Emamectin benzoate as well as a field study about Mode of Action rotation including this compound. Low variations in susceptibility (resistance ratios, 1,01-7,31 fold) were detected among the evalueted S. frugiperda populations. The field study reinforced our monitorings outcome that Emamectin Benzoate controls S. frugiperda and its use in IRM in Mato Grosso is practicable. Susceptibility monitoring should be continuous in order to detect possible increases of tolerance rates not only for this pesticide but also for all compounds used for this pest management aiming to apply early mitigation actions.