云梦是江汉平原集中棉产区,土地偏砂,历年凋枯病严重,影响棉花早衰低产。现将关于凋枯病的调查整理如下:一、发病情况凋枯病历来在该县各地普遍发生,据调查,1960年发病田占全县棉田25%,1965年发病田占30%以上,个别严重队如城关公社群利大队发病田达46%,1970年隔蒲公社永红大队发 Yunmeng is a concentrated cotton producing area in the Jianghan Plain. Its land is deserted and has withered blight over many years, affecting low yield of cotton in premature aging. The investigation on blight is now organized as follows: First, the incidence of blight has been widespread throughout the county, according to the survey, in 1960 accounted for 25% of the county cotton fields, 1965 disease accounted for more than 30% of the individual serious team Such as Chengguan commune brigade outbreaks amounted to 46%, 1970 commune Yonghong Battalion issued