近日,全国农业技术推广服务中心预测:今年全国棉花中后期病虫害总体呈中等程度发生,发生危害重于前期,仍以虫害为主,主要种类有蚜虫、棉叶螨、棉铃虫、棉盲蝽和烟粉虱;病害主要有黄萎病和铃病。预计棉花中后期病虫害发生1.29亿亩次,其中虫害发生1.05亿亩次,病害发生2400万亩。具体预报结果如下: Recently, the National Agricultural Technology Extension Service Center predicted that the overall pest and disease occurrence in the mid-and-late period of this year in China will generally occur to a moderate degree. The occurrence of the pests and diseases is heavier than that of the previous period. Pests still dominate. The main species are aphids, cotton spider mites, cotton bollworm, Bemisia tabaci; diseases mainly include Verticillium wilt and bell disease. It is estimated that there will be 129 million mu of pests in the middle and late stages of cotton, among which 105 million mu will occur in pests and 24 million mu diseases will occur. The specific forecast results are as follows: