Spinosad-mediated effects on the walking ability, midgut, and Malpighian tubules of Africanized honey bee workers

Autor: Marcos Pereira, Lopes, Kenner Morais, Fernandes, Hudson Vaner Ventura, Tomé, Wagner Gonzaga, Gonçalves, Franciane Rosa, Miranda, José Eduardo, Serrão, Gustavo Ferreira, Martins
Rok vydání: 2017
Předmět:
Zdroj: Pest management science. 74(6)
ISSN: 1526-4998
Popis: The global decline in Apis mellifera colonies is attributed to multiple factors, including pesticides. The bioinsecticide spinosad was initially recognized as safe for non-target organisms; however, its toxicity has been changing this view. Here, we investigated the survival, behavioral changes, and structural changes in the midgut and Malpighian tubules of A. mellifera treated orally with a spinosad formulation.The field-recommended concentration of spinosad killed 100% of the bees. The 5% and 50% lethal concentrations (LCThe present work provides new insights into the debate about the role of bioinsecticides in the mortality of Africanized honey bees. Even at very low concentrations, the spinosad formulation was toxic to the vital organs midgut and Malpighian tubules and adversely affected walking behavior. This detailed evaluation of the impact of the bioinsecticide on A. mellifera will contribute to the clarification of disturbances probably caused by spinosad formulations, which can be used to develop more sustainable protocols in agriculture. © 2017 Society of Chemical Industry.
Databáze: OpenAIRE