Toxicity of Fenpyroximate, Difenoconazole and Mineral Oil on Apis mellifera L. Introduction

Delzuite Teles Leite, Roberto Barbosa Sampaio, Claudia Oliveira dos Santos, Juliana Nascimento dos Santos, Emerson Dechechi Chambó, Carlos Alfredo Lopes de Carvalho, Geni da Silva Sodré


Bees of genus Apis are the main crop pollinators; however, the use of pesticides in agriculture may intoxicate them during foraging. In this study, we evaluated the toxic eff ects caused by difenoconazole (fungicide), fenpyroximate (acaricide) and mineral oil (adjuvant) used alone and associated (pesticide + adjuvant) on workers of Apis mellifera L. Bees were exposed to product doses recommended by manufacturers, orally and in contact on a contaminated surface in a controlled environment. All products presented low lethality, both in isolation and combination (except for difenoconazole via contact), however, they all showed toxic effects. The results showed that combination of pesticides with adjuvant augmented toxic eff ects.


Synergism; beekeeping, useful insects

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