1. The Sanya Institute of Nanjing Agricultural University, Sanya, Hainan 572000, P. R. China
2. College of Plant Protection, State & Local Joint Engineering Research Center of Green Pesticide Invention and Application, Nanjing Agricultural University, Nanjing, Jiangsu 210095, P. R. China
3. Key Laboratory of Integrated Management of Crop Diseases and Pests, Ministry of Education, Nanjing, Jiangsu 210095, P. R. China