1. Academy of Agriculture and Forestry Sciences, Qinghai University, Xining, China
2. State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining, China
3. Ministry of Agriculture, Scientific Observing and Experimental Station of Crop Pest in Xining, Xining, China
4. Key Laboratory of Agricultural Integrated Pest Management of Qinghai Province, Xining, China