1. Department of Plant Protection Jilin Agricultural Science and Technology University Jilin China
2. Forestry College Beihua University Jilin China
3. Biology Centre, Czech Academy of Sciences Institute of Soil Biology and Biogeochemistry České Budějovice Czech Republic
4. Department of Plant Protection Shenyang Agricultural University Shenyang China
5. Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology Chinese Academy of Sciences Changchun China