根据内源性害虫越冬前虫量基数、冬季及明年气候预报、种植制度等病虫害发生相关因素,结合近几年病虫害发生走势,预计2005年江苏省农作物主要病虫害将达偏重发生程度。其中,小麦赤霉病、油菜菌核病、水稻条纹叶枯病、螟虫、迁飞性害虫将偏重至大发生;烟粉虱、棉蓟马、夜蛾类害虫在局部地区发生程度加重。 According to the number of insect pest overwintering, the climate forecast in winter and next year, planting system and other pests and diseases, combined with the occurrence of pests and diseases in recent years, it is estimated that the main pests and diseases of crops in Jiangsu Province will reach the degree of emphasis in 2005. Among them, wheat scab, Sclerotinia sclerotiorum, rice stripe disease, stem borers and migratory pests will be heavily to large occurrence; Bemisia tabaci, cotton thrips, night worm moth pests in some areas increased.