1. College of Forestry and Landscape Architecture, Xinjiang Agricultural University, Urumqi 830052, China
2. Department of Plant Pathology, University of California‐Davis, Kearney Agricultural Research and Extension Center, Parlier, CA 93648, U.S.A.
3. University of California Cooperative Extension, Sutter-Yuba Counties, Yuba City, CA 95991, U.S.A.