Shijiazhuang Institute of Pomology Hebei Academy of Agriculture and Forestry Sciences Shijiazhuang 050061 China;
Shijiazhuang Institute of Pomology Hebei Academy of Agriculture and Forestry Sciences Shijiazhuang 050061 China;
Plant Protection and Quarantine Station of Hebei Province Shijiazhuang 050035 China;
Shijiazhuang Institute of Pomology Hebei Academy of Agriculture and Forestry Sciences Shijiazhuang 050061 China;
Shijiazhuang Institute of Pomology Hebei Academy of Agriculture and Forestry Sciences Shijiazhuang 050061 China;
Shijiazhuang Institute of Pomology Hebei Academy of Agriculture and Forestry Sciences Shijiazhuang 050061 China;
Powdery mildew in strawberry; Harm; Occurrence regularity; Control measure;