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一、棉花枯、黄萎病的发生情况 枝江县三星公社江洲大队是长江中的一个小洲,有耕地606亩,其中棉花475亩,占耕地面积78％。十多年来,在棉花生产上都不同程度地受棉花枯萎病和黄萎病的为害。1961年,这个队开始发现枯、黄萎病,当时只有病株10余株,1962年发展到40株;以后继续发展蔓延,到1965年,全大队450多亩棉
First, cotton withered, Verticillium wilt situation Zhijiang County Samsung Commune Jiang Chau is a small continent in the Yangtze River, 606 acres of arable land, of which 475 acres of cotton, accounting for 78% of the cultivated area. For more than a decade, cotton production has been affected to varying degrees by cotton blight and Verticillium wilt. In 1961, the team began to discover withered and Verticillium wilt. At that time, there were only 10 strains of diseased plants that had grown to 40 strains in 1962. After that, the team continued to develop and spread. By 1965, the entire group of 450-plus-acre cotton