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为有效应对春尺蠖等春季林木有害生物的高发态势,有效保护海淀区林地景观完整,4月15日至5月10日,区林业保护总站组织对苏家坨镇、上庄镇、西北旺镇、温泉镇、西山农场、北京林大实验林场等地的山区生态林、平原片林和主干道路两侧的防护林实施飞防作业,累计完成飞防作业120个架次,使用除虫脲、杀铃脲药剂1200公斤,有效弥补了人工
In order to effectively deal with the high incidence of spring forest pests, such as the spring scale, and effectively protecting the landscape of the forestlands in Haidian District, from April 15 to May 10, the district forestry protection station organized a series of surveys on Sujiatuo, Shangzhuang, Wenquan Town, Xishan Farm, Beijing Forestry Experimental Forest Farm and other places of mountain ecological forest, plain forest and the main road on both sides of the shelterbelt implementation of fly defense operations, the cumulative completion of fly-defensive operations 120 sorties, the use of diflubenzuron, 1200 kg of urea agent, effectively make up the artificial