The green peach aphid, Myzus persicae Sülzer, is an important sap-sucking pest of many plants, including Chinese cabbage. The objective of this study was therefore (1) to determine the effects of sublethal concentrations of afidopyropen, sulfoxaflor, and spirotetramat on adult longevity and the fecundity of M. persicae, and (2) to study the feeding behavior of M. persicae on Chinese cabbage leaves treated with various concentrations of these three insecticides. Longevity and total fecundity of M. persicae adults were decreased at concentrations higher than LC30. Feeding behavior analyses using an electrical penetration graph showed that sublethal concentrations of afidopyropen, sulfoxaflor, and spirotetramat had significant effects on the duration of phloem ingestion.

• Soeun Shin(Department of Plant Medicine, Chungbuk National University)
• Sun Ran Cho(Department of Plant Medicine, Chungbuk National University)
• Hyun Kyung Kim(Department of Plant Medicine, Chungbuk National University)
• Hyun-Na Koo(Department of Plant Medicine, Chungbuk National University)
• Gil-Hah Kim(Department of Plant Medicine, Chungbuk National University)