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稻飞虱发生趋势:预计五(3)代全省大部分单季稻中等至中等偏重发生,发生面积全省约1200万亩。防治适期在8月上、中旬。稻纵卷叶螟发生趋势:预计五(3)代稻纵卷叶螟在皖南、皖西南单季稻中等偏重发生,其它稻区中等发生。全省发生面积约800万亩。防治适期在7月底至8月上旬。三化螟发生趋势:预计三代三化螟在江淮中南部、沿江四稻混栽区迟熟单季稻田中等发生,其它稻区轻发至中等偏轻发生。全省发生面积约400万亩。防治适期在8月下旬。
The occurrence trend of planthoppers: It is estimated that most of the single-crop rice in the province will be moderately to moderately weighted in five (3) generations, with an area of about 12 million mu in the province. Prevention and control of suitable period in August, mid. Cnaphalocrocis medinalis trends: Five (3) generations of rice leafrollers are expected to be moderately heavier in southern Anhui and southwestern Anhui, with other rice areas occurring moderately. The province has an area of about 8000000 acres. The appropriate period of control in late July to early August. Stem Borer Occurrence Trend: Three generations of striped stem borer (Chilo suppressalis) are expected to occur in the central and southern part of the Jianghuai region, moderately late rice cropping season in the four-season paddy planting area along the Yangtze River, and mild to moderate in the other regions. An area of about 4000000 acres of the province occurred. Preventive period in late August.