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The Temperature Affects the Impact Levels of Synthetic Insecticides on a Parasitoid Wasp Used in the Biological Control of Pentatomid Pests in Soybean Crops by Rakes, Matheus; Morais, Maíra Chagas; Ribeiro, Leandro do Prado; Palma, Gabriel Rodrigues; Moral, Rafael de Andrade; Bernardi, Daniel; Grützmacher, Anderson Dionei is a scholarly article available to read on EtoBox.

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The impact of climate change has led to growing global concern about the interaction of temperature and xenobiotics in agricultural toxicological studies. Thus, for the first time, we evaluated the lethal, sublethal and transgerational effects of six insecticides used in the management of stink bug complex in soybean crops on the different life stages of the parasitoid Telenomus podisi (Hymenoptera: Scelionidae) in three temperature levels (15, 25 and 30 {\deg}C). Telenomus podisi adults (F0 generation), when exposed to insecticides based on acephate, spinosad and thiamethoxam + lambda-cyhalothrin, showed accumulated mortality of 100% at all temperature levels tested. On the other hand, methoxyfenozide + spinetoram caused average mortalities of 88.75% at 15 {\deg}C and 38.75% at 25 and 30 {\deg}C. In contrast, the mortality rates caused by chlorfenapyr at 15, 25 and 30 {\deg}C were 1.25, 71.25 and 71.25%. On the other hand, surviving adults in lethal toxicity bioassay did not show differences in egg parasitism (F0 generation) and emergence of F1 generation in all temperature levels studied; however, the insecticide methoxyfenozide + spinetoram showed the lowest level of parasitism

Author

Rakes, Matheus; Morais, Maíra Chagas; Ribeiro, Leandro do Prado; Palma, Gabriel Rodrigues; Moral, Rafael de Andrade; Bernardi, Daniel; Grützmacher, Anderson Dionei

Published

2024

Language

EN