胡瓜(Cucumis sativus L.)为一种小型黄瓜,近年发展较快,已成为重要的加工出口蔬菜之一,仅浙江省的栽培面积就超过2万亩。胡瓜生产中,病害成为最大威胁,并日趋严重,作者在浙江省萧山、海宁等地调查发现,在胡瓜生长前、中期成片胡瓜枯死,甚至翻耕重种。为了解这一病害的病因,正确指导防 Cucumber (Cucumis sativus L.), a small cucumber, has developed rapidly in recent years and has become one of the important processing and exporting vegetables. Only Zhejiang Province has a cultivated area of ​​more than 20,000 mu. Squash production, disease has become the biggest threat, and more serious, the authors in Zhejiang Xiaoshan, Haining and other places found that before the growth of cucumber, into a medium-sized pieces of calamus dead, and even plowing heavy. In order to understand the cause of this disease, correct guidance