【Author】
Wang Xuedong 1Ou Xiaoming 2Wang Huili 3Fan Defang 1 (1 Institute of Pesticide Environmental Toxicology, Zhejiang University, Hangzho u310029,China) (2 Hunan Branch of National Pesticide R&D South Center, Hunan Institute of Chemi cal Industry, Changsa410007,China ) (3 Forestry Resources and Environmental College, Nanjing Forestry University, N anjing210037,China)