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在上海地区不同葡萄设施栽培模式下开展葡萄灰霉病田间防治试验,探讨了不同栽培模式的葡萄灰霉病的发生情况,以及施用生物农药哈茨木霉菌+几丁聚糖和化学农药嘧霉胺对葡萄灰霉病的防治效果。双膜覆盖栽培模式的葡萄灰霉病发生最早且最重。哈茨木霉菌+几丁聚糖在喷施3次后对各栽培模式的葡萄灰霉病的病指防效均达80%以上。其中,对双膜、单膜覆盖栽培模式的灰霉病的总体防效高于嘧霉胺,对避雨栽培模式的灰霉病的总体防效与嘧霉胺无显著差异。
In the grape cultivation mode in Shanghai in the grape gray mold disease prevention and control of the field to explore the different cultivation patterns of grape gray mold disease and the application of biopesticide Harzian fungi + chitosan and chemical pesticides pyrimethanil Grape gray mold disease prevention and control effect. Grape gray mold with double-membrane mulching has the earliest and heaviest occurrence. After Trichoderma harzianum + chitosan was sprayed 3 times, the disease control efficacy of Botrytis cinerea in each cultivation mode reached more than 80%. Among them, the overall control effect on gray mold with double-membrane and single-membrane covered cultivation mode was higher than that of pyrimethanil, and no significant difference was found between the overall control effect of gray mold with shelter-rain cultivation mode and pyrimethanil.