Artículos de revistas
Toxicity and motor changes in africanized honey bees (Apis mellifera l.) exposed to fipronil and imidacloprid
Fecha
2018-01-01Registro en:
Anais da Academia Brasileira de Ciencias, v. 90, n. 1, p. 239-245, 2018.
1678-2690
0001-3765
10.1590/0001-3765201820150191
S0001-37652018000100239
2-s2.0-85046511438
S0001-37652018000100239.pdf
Autor
Universidade Estadual Paulista (Unesp)
Institución
Resumen
This study evaluated the in vitro toxicity and motor activity changes in African-derived adult honey bees (Apis mellifera L.) exposed to lethal or sublethal doses of the insecticides fipronil and imidacloprid. Mortality of bees was assessed to determine the ingestion and contact lethal dose for 24 h using probit analysis. Motor activities in bees exposed to lethal (LD50) and sublethal doses (1/500thof the lethal dose) of both insecticides were evaluated in a behavioral observation box at 1 and 4 h. Ingestion and contact lethal doses of fipronil were 0.2316 ± 0.0626 and 0.0080 ± 0.0021 mg/bee, respectively. Ingestion and contact lethal doses of imidacloprid were 0.1079 ± 0.0375 and 0.0308 ± 0.0218 mg/bee, respectively. Motor function of bees exposed to lethal doses of fipronil and imidacloprid was impaired; exposure to sublethal doses of fipronil but not imidacloprid impaired motor function. The insecticides evaluated in this study were highly toxic to African-derived A. mellifera and caused impaired motor function in these pollinators.