棉花黄萎病是一种顽固的真菌病害,属重要检疫对象。为研究它的侵染规律,我们从1978年起对不同带菌体的传病力及化学处理的效果进行了田间试验,前三年未取得明显结果。1981年改进方法后取得初步结果。现将该年试验结果简要报道如下。 Verticillium wilt is a stubborn fungal disease, which is an important quarantine object. In order to study its law of infestation, we conducted a field experiment on the pathogenicity of different fungi and the effect of chemical treatment since 1978, with no obvious result in the first three years. Improved results in 1981 to obtain preliminary results. Now the test results of the year are briefly reported below.