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近年来,随着棚室西葫芦栽培面积的不断扩大,西葫芦灰霉病的发生日趋严重,目前已成为西葫芦生产中的一种重要的病害。该病发生早、分部广、蔓延快、危害重,一般病瓜率在10%-25%,严重时可达40%以上,严重影响商品产量和质量,菜农损失严重。一、发病症状西葫芦灰霉病可为害花、果、茎和叶等,以为害花和幼瓜最为普遍。病菌多从开败的花侵入,使花腐烂,产生灰色霉层,后由病花向幼瓜发展。幼瓜染病后,初期顶尖褪绿,后呈水渍状软腐并
In recent years, with the continuous expansion of squash cultivation area, the occurrence of gray mold disease of zucchini becomes more and more serious, and now it has become an important disease in the production of zucchini. Early onset of the disease, wide division, rapid spread, endanger heavy, the general disease rate of 10% -25%, in severe cases up to 40% or more, seriously affecting the output and quality of goods, vegetable farmers suffered serious losses. First, the incidence of symptoms Zucchini Botrytis cineraria, fruit, stems and leaves, etc., that flowers and cucumbers the most common. Germs and more from the failure of flowers invaded, the flower decay, resulting in gray mold layer, after the disease to the development of young cucumbers. After the young cucumber disease, the initial top chlorotic, after the soft water stains and rot