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Fernandes, Maria E.S.; Alves, Flávia M.; Pereira, Renata C.; Aquino, Leonardo A.; Fernandes, Flávio L.; Zanuncio, José C.
Chemosphere, August 2016, 2016-Aug, 2016-08-00, 20160801, Letnik: 156Journal Article
Lethal and sublethal effects of insecticides on target and non-target arthropods are a concern of pest management programs. Cycloneda sanguinea, Orius insidiosus and Chauliognathus flavipes are important biological control agents for aphids, whitefly, lepidopterus eggs, thrips and mites. All three test species were subjected to a toxicity study using the insecticides acephate, bifenthrin, chlorantraniliprole, chlorpyrifos, deltamethrin, imidacloprid, and thiamethoxam. Experiments were done in the lab and field. In the laboratory we evaluated the mortality and sublethal effects of the concentration that killed 20% of the population (LC20) on feeding, repellence and reproduction of the species tested. The lethal effects of these insecticides at the recommended doses was evaluated in the field. Concentration-response bioassays indicated chlorantraniliprole had the lowest toxicity, while chlorpyrifos and acephate were the most toxic. Test species exposed to filter paper surfaces treated with pyrethroids, neonicotinoids and organophosphates were repelled. On the other hand, test species were not repelled from surfaces treated with chlorantraniliprole. Chlorantraniliprole therefore seemed to be the least dangerous insecticide for these three beneficial arthropod test species. Display omitted •Safety of seven pesticides to the three beneficial insects was evaluated.•The chlorantraniliprole showed low lethal and sublethal effects to test-species.•Deltamethrin induced hormesis in Cycloneda sanguinea and Orius insidiosus.•The organophosphates and pyrethroids on predators IPM be evaluated with caution.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Vir: Osebne bibliografije
in: SICRIS
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