The Toxicity Response of Coccinella septempunctata L. (Coleoptera: Coccinellidae) after Exposure to Sublethal Concentrations of Acetamiprid

Coccinella septempunctata is a nontarget beneficial arthropod and an important aphid predator in agricultural crops. In this study, the toxic effects of neonicotinoid acetamiprid on C. were investigated to determine its applicability efficacy against predator. The results toxicity test showed that second instar larvae most sensitive acetamiprid. LC50 values 1st, 2nd, 3rd, 4th 15.767, 9.412, 18.850, 25.278 mg a.i. L−1, respectively. Compared with control, predation ability different larval instars was inhibited by sublethal concentrations predatory function could reduce consumption aphids fourth over short duration significantly ladybird larvae. developmental concentration shortened growth Acetamiprid had considerable adverse stages septempunctata. Together, our provide information for implementation biological chemical control strategies integrated management aphids.