棉花烂铃病害在全省棉区均有发生。据我们调查,一般因烂铃减产达20—30％,衣分损失约7.3％,纤维长度下降4.4—26.7％。因此,防治烂铃病害是保证棉花优质高产的重要环节。为了摸清我省棉区烂铃病害种类,致病原因及有效防治措施,我们于1981—1985年在本所及运城、临汾、晋中、晋东南等4个 Cotton boll disease has occurred in the province’s cotton area. According to our survey, the general loss of rotten bell by 20-30%, loss of about 7.3% loss of clothing, fiber length decreased by 4.4-26.7%. Therefore, the control of rotten bollworm disease is to ensure high quality cotton yield an important part. In order to find out the types of cotton boll bellows disease in our province, the etiological factor and effective prevention and control measures, we conducted a total of four tests in our institute, Yuncheng, Linfen, Jinzhong and southeast of Shandong Province in 1981-1985