Use este identificador para citar ou linkar para este item: https://locus.ufv.br//handle/123456789/14556
Tipo: Artigo
Título: Toxicity and residual effects of insecticides on Ascia monuste and predator Solenopsis saevissima
Autor(es): Araújo, Tamíris A de
Picanço, Marcelo C
Ferreira, Dalton de O
Campos, Júlia ND
Arcanjo, Lucas de P
Silva, Gerson A
Abstract: Investigating the impact of pesticides on non-target organisms is essential for sustainable integrated pest management programs. We therefore assessed the toxicity of ten insecticides to the brassica caterpillar Ascia monuste and its ant predator Solenopsis saevissima and examined the effect that the insecticide synergists had on toxicity to the predator. We also assessed the residual period of control and impact of the insecticides during the brassica growing cycle. All insecticides except flubendiamide exhibited mortality above the threshold required by Brazilian legislation (80%). Chlorantraniliprole, cyantraniliprole, indoxacarb and spinosad exhibited lower toxicity to the ant predator than they did to the brassica caterpillar. The results obtained for synergized insecticides suggest that selectivity to the predator was due the involvement of cytochrome P450-dependent monooxygenases. Chlorfenapyr and cyantraniliprole exhibited the highest residual periods of control to the brassica caterpillar, whereas malathion had the greatest impact on the predator. Most of the insecticides efficiently controlled the brassica caterpillar, but not all exhibited selectivity to the predator. Therefore, due to the distinctive responses of organisms with respect to residual periods of control and the impact of the insecticides, spraying frequency must be strongly considered in integrated pest management programs.
Palavras-chave: Fire ant
Pieridae
Physiological selectivity
Synergists
Residual period of control
Editor: Society of Chemical Industry
Tipo de Acesso: Open Access
URI: http://dx.doi.org/10.1002/ps.4603
http://www.locus.ufv.br/handle/123456789/14556
Data do documento: 4-Jul-2017
Aparece nas coleções:Fitotecnia - Artigos

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