摘要
Due to the lack of attention to the prevention and control of powdery mildew in pear orchard in autumn,the occurrence of pear powdery mildew is aggravating year by year,and it has become one of the main diseases of pear tree.In this paper,the symptom diagnosis,incidence regu-larity and prevention and control technology of pear powdery mildew are summarized,which will provide the reference for prevention and treatment of pear powdery mildew in production.
基金
Supported by Innovation Team Project of Hebei Academy of Agriculture and Forestry Sciences (F21E06-7)
Key Research and Development Program of Hebei Province (21326308D-1-2)
Foundation of Hebei Academy of Agriculture and Forestry Sciences (2021020201)。
