Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/42759
Title: Combined thermal and insecticidal stresses on the generalist predator Macrolophus pygmaeus
Keywords: Biopesticides
Chlorantraniliprole
Climate changes
Cyantraniliprole
Tuta absoluta
Integrated pest management
Biopesticidas
Mudanças climáticas
Ciantraniliprole
Manejo integrado de pragas
Issue Date: 10-Aug-2020
Publisher: Elsevier
Citation: RICUPERO, M. et al. Combined thermal and insecticidal stresses on the generalist predator Macrolophus pygmaeus. Science of The Total Environment, Amsterdam, v. 729, 138922, 10 Aug. 2020.
Abstract: Ecotoxicological risk assessments of pesticides on non-target arthropods are often carried out under constant and optimal temperature regimes. However, living organisms rarely experience these conditions in real field situations. Understanding the impact of pesticides on non-target beneficial arthropods under temperature stresses is especially important in terms of global warming. We assessed the lethal and sublethal effects of four modern insecticides (chlorantraniliprole, cyantraniliprole, spinetoram, spinosad), on the generalist predator Macrolophus pygmaeus (Hemiptera: Miridae) under a range of temperatures (from 10 to 40°C) frequently experienced in a real field scenario. A reduction coefficient (Ex) was calculated by summarizing the mortality and predator reproductive capacity and, the chemicals were classified according to the International Organization for Biological Control (IOBC) toxicity classes. The insecticides showed a marked synergistic effect with temperature, as the predator mortality and reproductive outputs were significantly correlated with increasing temperatures. Spinosyns interacted significantly with temperature causing the highest mortality and lowest fertility rates. Anthranilic diamides showed a safer ecotoxicological profile compared to spinosyns, with cyantraniliprole being more harmful than chlorantraniliprole. These results suggest that temperature should be taken into account in pesticide ecotoxicology studies within the framework of integrated pest management and the recent climate changes.
URI: https://www.sciencedirect.com/science/article/abs/pii/S0048969720324396#!
http://repositorio.ufla.br/jspui/handle/1/42759
Appears in Collections:DEN - Artigos publicados em periódicos

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