Use este identificador para citar ou linkar para este item: https://locus.ufv.br//handle/123456789/23050
Tipo: Artigo
Título: Lethal and behavioral effects of synthetic and organic insecticides on Spodoptera exigua and its predator Podisus maculiventris
Autor(es): Castro, Ancidériton Antonio de
Legaspi, Jesusa Crisostomo
Tavares, Wagner de Souza
Miller, Neil
Kanga, Lambert
Muhammad Haseeb, Muhammad
Serrão, José Eduardo
Zanuncio, José Cola
Meagher Jr., Robert L.
Wilcken, Carlos Frederico
Abstract: The beet armyworm, Spodoptera exigua (Lepidoptera: Noctuidae), is a key insect pest of edible vegetables around the world and it is resistant to insecticide of different classes. Insecticides that are effective to this pest and selective to predator stinkbugs are required for the integrated management of S. exigua. The toxicity of four commercial insecticide formulations azadirachtin + pyrethrin, spinosad, pyrethrin and chlorantraniliprole was tested on the target pest and their side effect were evaluated on the spined soldier bug, Podisus maculiventris (Heteroptera: Pentatomidae) through different bioassays. Spinosad and chlorantraniliprole were more toxic to S. exigua than to the predator P. maculiventris but opposite results were obtained for pyrethrin and azadirachtin + pyrethrin in contact toxicity bioassay. Chlorantraniliprole was the most toxic to S. exigua in oral toxicity bioassay, followed by spinosad, pyrethrin and azadirachtin + pyrethrin. Spinosad in oral toxicity bioassay was the most toxic to P. maculiventris, followed by pyrethrin, azadirachtin + pyrethrin and chlorantraniliprole. Spinosad caused irritability to the predator while pyrethrin to the pest. The insecticide repellency was not observed over the tested insect species. The synthetic insecticide chlorantraniliprole was less toxic than the natural pyrethrin, azadirachtin + pyrethrin and spinosad to the predator. This work provides useful information on the combination of commercial insecticides with the predator P. maculiventris to controlling S. exigua in integrated pest management (IPM) programs.
Palavras-chave: Insecticides
Toxicity
Insect pests
Animal behavior
Pest control
Crops
Nymphs
Larvae
Editor: PLOS ONE
Tipo de Acesso: Open Access
URI: https://doi.org/10.1371/journal.pone.0206789
http://www.locus.ufv.br/handle/123456789/23050
Data do documento: Nov-2018
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