记者近日从河北省林业厅获悉,根据美国白蛾虫情调查监测,截至8月底,河北省美国白蛾发生面积256万亩,与去年同期相比基本持平,部分市、县(市、区)美国白蛾出现疫情反弹,个别村庄和城区树木局部出现严重危害现象,省林业厅已采取有效措施积极应对。目前正值第三代美国白蛾发生防治的关键期。为降低虫口密度,减少越冬基数,河北省林业厅近日印发《关于认真做好美国白蛾秋季防治工作的紧急通知》,要求各设区市立即安排部署秋季防治工作,准确掌握虫情动态,为防治提供科学依据;认真落实“村村设立查防 Recently, the reporter learned from the Forestry Department of Hebei Province that according to the survey and monitoring of the white moth in the United States, as of the end of August, the area of ​​white moth occurred in Hebei Province was 2.56 million mu, basically the same as that of the same period of last year. Some cities and counties (cities, districts) The emergence of the United States white moth epidemic rebound, individual villages and urban areas of trees serious harm, the provincial Forestry Department has taken effective measures to actively respond. At present, the third generation of white moth occurrence and control of the critical period. In order to reduce the population density and reduce the number of overwintering bases, the Forestry Department of Hebei Province recently issued the ”Notice on Earnestly Doing the Autumnal Cure of Hyphantria cunea“ and asked all the cities and districts to immediately arrange the autumn prevention and control work to accurately grasp the dynamics of the insects. Provide scientific basis for prevention and treatment; conscientiously implement the ”village set up to prevent