根据2008年晚秋作物布局、前期病虫基数、常年病虫发生情况,结合气象分析,预计四川省晚秋作物病虫总体呈中等偏重发生,其中再生稻病虫预计偏重发生,发生面积300万亩次,以水稻三代螟虫、稻纵卷叶螟、稻飞虱为主。马铃薯病虫预计中等偏重发生,发生面积150万亩次,以马铃薯晚疫病为主。 According to the crop layout in late autumn 2008, the base number of pests and diseases in the early stage and the occurrence of pests and diseases in perennial areas, combined with the meteorological analysis, it is estimated that the occurrence of pests and diseases of late-autumn crops in Sichuan Province will appear moderately heavier and heavier, of which, , The third generation of rice stem borer, rice leaf roller, rice planthopper based. Potato pests and diseases are expected to moderately occur, the area of ​​150 mu acreage, with potato late blight-based.