近年来,上海郊区甜椒烂头发生较普遍,并有发展的趋势。发生烂头的植株,有的新叶上先产生褐色斑点,也有的新叶先黄化,继而花蕾、叶片脱落,嫩的分枝顶梢变黑坏死,严重的茎秆上产生坏死条,维管束变褐坏死。甜椒烂头如早期发生则基本无收,后期发生的植株虽能生长,但产量甚微。今年川沙县洋泾乡朱湾大队 In recent years, the suburbs of Shanghai sweet pepper rotten the more common, and there is a trend of development. Occurred rotten plants, and some new leaves on the first brown spots, and some new leaves first yellow, and then flower buds, leaves fall off, tender branches top blackening necrosis, severe stem necrosis, the dimension Tube bundle brown necrosis. Bell peppers rotten as early as basically no income occurs, although the late plant growth, but the yield is very small. This year Chuansha Yang Jing Zhu Bay Brigade