近日,为防止第三代美国白蛾对树木的危害,平谷区严防危险性林木病虫指挥部办公室调派专用直升机对高大树木进行了飞机防治,取得了显著效果。当前,平谷区通过专业测报点测报数据分析,第三代美国白蛾已进入网幕形成高峰期,发生基数高,虫口密度较大,是防治的最佳时期。平谷区园林绿化局已组织相关乡镇对第三代美国 Recently, in order to prevent the third generation of American white moth damage to trees, Pinggu prevent dangerous trees and insect pest headquarters office to deploy special helicopters on the tall trees for plane control and achieved remarkable results. At present, the Pinggu District, by means of professional survey report points measured data analysis, the third generation of American white moth has entered the screen to form the peak period, the occurrence of high base, population density, is the best time to prevent and control. Pinggu Landscaping Bureau has organized the township of the third generation of the United States