Toxicidade de inseticidas para abelhas nativas brasileiras

Detalhes bibliográficos
Ano de defesa: 2023
Autor(a) principal: Pereira, Aurélio de Souza
Orientador(a): Não Informado pela instituição
Banca de defesa: Não Informado pela instituição
Tipo de documento: Dissertação
Tipo de acesso: Acesso aberto
Idioma: por
Instituição de defesa: Universidade Federal de Lavras
Programa de Pós-graduação em Entomologia
UFLA
brasil
Departamento de Entomologia
Programa de Pós-Graduação: Não Informado pela instituição
Departamento: Não Informado pela instituição
País: Não Informado pela instituição
Palavras-chave em Português:
Link de acesso: http://repositorio.ufla.br/jspui/handle/1/56707
Resumo: The presence of xenobiotics in the environment represents a great risk for several species of beneficial organisms and, when it comes to Brazil, there is an immense diversity when we talk about bees. Among the insecticides used to control various insect pests, there are molecules from the organophosphate groups (dimethoate), neonicotinoid (thiamethoxam), pyrethroid (deltamethrin) and phenylpyrazole (fipronil), neurotoxic products widely used in agriculture, such as crops of cotton and apple. With regard to bee species, we can highlight the largest group of native Brazilian bee species, the Meliponini tribe, fundamental in the pollination of native angiosperms and in the development of meliponiculture, the activity responsible for managing these species. Highlighting the species Tetragonisca angustula, Scaptotrigona xanthotricha and Frieseomelitta varia, present in the meliponary of the Federal University of Lavras. This comparative study aimed to carry out the exposure of these three species of bees to the insecticides deltamethrin, dimethoate, fipronil and thiamethoxam in laboratory conditions. The results obtained at a lethal dose of 50 (LD50) demonstrate the existence of a differentiated response to intoxication with the same molecules studied with the Apis mellifera bee species, justifying the need for further studies with this group of native insects, aiming the development of protocols protection.