设施葡萄大棚灰霉病调查及空气中灰葡萄孢的致病性分析OA北大核心

In order to clarify the occurrence of gray mold in facility grapes and the pathogenicity of Botrytis cinerea in facility air,B.cinerea in six grape greenhouses in Jiyang and Zhaoyuan of Shandong were investigated,and air samples were collected by high-flow air sampler,and B.cinerea was isolated,identified and tested for pathogenicity.The results showed that gray mold occurred in grape growing seasons in both regions,and the disease index of gray mold was the highest in August(11.22).Through the isolation,identification and pathogenicity analysis of the fungi in air samples,it was found that there were a large number of B.cinerea in air of grape greenhouse,and the isolation rate of this pathogen was the highest(38.89%),and it had pathogenicity to multiple grape varieties,but there were differences among different varieties,among which the pathogenicity of'Red Globe'was the strongest,and that of'Shine Muscat'was the weakest.This study provided strong evidence for the airborne transmission of gray mold of grape facilities,and laid a foundation for the early warning and prevention of disease in grape facility