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去年我区飞机撒药防治林木害虫工作,从4月13日至5月23日,对银川、永宁、贺兰、平罗、灵武、盐池、青铜峡七个市、县12个林业单位进行作业。共飞行139小时45分,防治面积99336亩,每亩平均防治费1.29元。主要飞防虫种沙枣木虱、柳枝瘿蚊、沙枣尺蠖、杨枝天牛、杨树蚜虫、十斑吉丁虫等,在药效检查时,杀虫率均在90％以上。充分显示出飞防效率高,既能抓住时机,迅速有效地消灭害虫,又可节约人力、财力和农药,符合多、快、好、省的精神。以下就虫情测报、飞防效果等技术问题进行总结。
Last year, our region’s aircraft spilled medicine to prevent and control forest pests. From April 13 to May 23, 12 forestry units in seven cities and counties of Yinchuan, Yongning, Helan, Pingluo, Lingwu, Yanchi and Qingtongxia were operation. A total of 139 hours and 45 minutes flight, prevention and control area of 99,336 mu, the average prevention and control fee per acre 1.29 yuan. The main flying insects and species of jujube wood louse, Willow sticks mosquito, Dioscorea angustifolia, poplar, poplar aphids, ten spot Jyrtean, etc., in the efficacy test, the insecticidal rates were above 90%. It fully shows the high efficiency of flying prevention. It not only seizes the opportunity to eliminate pests promptly and effectively, but also saves manpower, financial resources and pesticides and meets the requirements of more, faster, better and more provincial. The following worms reported, fly defense effect and other technical issues are summarized.