棉花枯萎和黄萎病都是危害棉花的重要病害，都是由真菌引起的系统侵染型的病害。由于这两种病害为害时间长、损失大，所以被棉农们习惯的称之为棉花的“癌症”。一、症状和发生规律1、枯萎病枯萎病队棉花的苗期到成熟期都能发病，严重的叶片脱落直至死苗，在棉株的花蕾期症状最 Cotton wilt and Verticillium wilt are all important diseases that endanger cotton and are all systematic infection-type diseases caused by fungi. As these two diseases damage a long time, loss, so they are used to cotton farmers called “cancer.” First, the symptoms and occurrence of 1, wilt wilt disease Cotton seedlings to the maturity stage can be disease, severe leaves off until dead seedlings, buds in the cotton plant symptoms