从河北省植保站获悉,预计今年河北全省农业有害生物总体将呈中等偏重发生,病虫害发生面积将达4.5亿亩次。其中棉花病虫害方面,棉铃虫发生将呈加重趋势,特别是二代棉铃虫将偏重发生,棉蚜将持续偏重发生;棉盲蝽蟓的危害程度将进一步上升。棉化病虫以棉蚜、棉盲蝽蟓、棉黄枯萎病为 It is learned from the plant protection station in Hebei Province that it is estimated that the overall amount of agricultural pests in Hebei province will be moderately weighted this year, and the pest and disease area will reach 450 million mu. In cotton diseases and insect pests, the incidence of cotton bollworm will increase, especially the second generation of cotton bollworm will be heavily on, cotton aphid will continue to be heavily on the occurrence of cotton lacewing stink damage will further increase. Mianhua pests to cotton aphids, cotton lacewings, cotton yellow blight as