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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Late effect of larval co-exposure to the insecticide clothianidin and fungicide pyraclostrobin in Africanized Apis mellifera

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Autor(es):
Tadei, Rafaela [1, 2] ; Domingues, Caio E. C. [3] ; Malaquias, Jose Bruno [4] ; Camilo, Erasnilson Vieira [5] ; Malaspina, Osmar [3] ; Silva-Zacarin, Elaine C. M. [1, 2]
Número total de Autores: 6
Afiliação do(s) autor(es):
[1] Univ Fed Sao Carlos UFSCar, Programa Posgrad Biotecnol & Monitoramento Ambien, CCTS, Campus Sorocaba, BR-18052780 Sorocaba, SP - Brazil
[2] Univ Fed Sao Carlos UFSCar, Dept Biol, CCHB, Campus Sorocaba, BR-18052780 Sorocaba, SP - Brazil
[3] Univ Estadual Paulista UNESP Julio de Mesquita Fi, Programa Posgrad Biol Celular & Mol, Campus Rio Claro, Ave 24 A, 1515, BR-13506900 Rio Claro, SP - Brazil
[4] Univ Sao Paulo, Luiz de Queiroz Coll Agr ESALQ, Dept Entomol & Acarol, Ave Padua Dias 11, BR-13418900 Sao Paulo - Brazil
[5] Univ Sao Paulo, Luiz de Queiroz Coll Agr ESALQ, Dept Agr Stat & Experimentat, Ave Padua Dias 11, BR-13418900 Sao Paulo - Brazil
Número total de Afiliações: 5
Tipo de documento: Artigo Científico
Fonte: SCIENTIFIC REPORTS; v. 9, MAR 1 2019.
Citações Web of Science: 0
Resumo

Among the factors that contribute to the reduction of honeybee populations are the pesticides. These chemical compounds reach the hive through forager bees, and once there, they can be ingested by the larvae. We evaluated the effects of repeated larval exposure to neonicotinoid insecticide, both in isolation and in combination with strobilurin fungicide, at environmentally relevant doses. The total consumption of the contaminated diet was 23.63 ng fungicide/larvae (pyraclostrobin) and 0.2364 ng insecticide/larvae (clothianidin). The effects on post-embryonic development were evaluated over time. Additionally, we assessed the survival pattern of worker bees after emergence, and the pesticides' effects on the behavior of newly emerged workers and young workers. Young bees that were exposed to the fungicide and those subjected to co-exposure to both pesticides during larval phase showed behavioral changes. The insecticide, both in isolation and in combination with fungicide reduced the bees' longevity; this effect of larval exposure to pesticides was stronger in bees that were exposed only to the insecticide. Although the larvae did not have sensitivity to exposure to pesticides, they showed later effects after emergence, which may compromise the dynamics of the colony, contributing to the reduction of the populations of bees in agroecosystems. (AU)

Processo FAPESP: 16/26043-6 - Avaliação toxicológica da exposição larval à mistura do inseticida neonicotinoide clotianidina e do fungicida estrobilurina piraclostrobina no desenvolvimento de Apis mellifera africanizada
Beneficiário:Rafaela Tadei
Linha de fomento: Bolsas no Brasil - Iniciação Científica
Processo FAPESP: 17/21097-3 - Interações abelha-agricultura: perspectivas para a utilização sustentável
Beneficiário:Osmar Malaspina
Linha de fomento: Auxílio à Pesquisa - Temático
Processo FAPESP: 16/15743-7 - Análise dos efeitos do fungicida estrobilurina piraclostrobina no intestino médio de Apis mellifera africanizada Linnaeus, 1758 (Hymenoptera: Apidae) e Melipona scutellaris Latreille, 1811 (Hymenoptera: Apidae)
Beneficiário:Caio Eduardo da Costa Domingues
Linha de fomento: Bolsas no Brasil - Doutorado
Processo FAPESP: 15/20380-8 - Modelagem ecológica da dispersão larval de Spodoptera frugiperda (Lepidoptera: Noctuidae) em algodão Bt: implicações para evolução e manejo da resistência
Beneficiário:José Bruno Malaquias
Linha de fomento: Bolsas no Brasil - Doutorado