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近日到蔬菜基地转了一圈,发现莴笋灰霉病发生较多,个别发病严重的,导致了死株现象,由于不及时防治,灰霉病菌分生孢子通过气流传播,而使全田莴笋均不同程度感病,应引起高度重视。灰霉病是莴笋、莴苣的主要病害。其中,以叶用莴苣受害重,轻者病株率达10%～20%,重者达30%以上,还可为害茄科、葫芦科、豆科、十字花科、伞形花科、藜科、菊科等多种蔬菜。
Recently to the vegetable base in a circle, found that gray mold lettuce occurred more often, a serious incidence of individual, leading to the phenomenon of dead strains, due to not timely control, gray mold bacteria conidia spread by air, leaving the whole field lettuce are Different degrees of illness, should cause great attention. Botrytis cinerea is the main disease of lettuce and lettuce. Among them, the lettuce suffered heavy leaf weight, the light of the diseased plants rate of 10% to 20%, the weight of more than 30%, but also harmful to Solanaceae, Cucurbitaceae, Leguminosae, Cruciferae, Umbelliferae, Chenopodiaceae Section, Compositae and other vegetables.