使用直升机喷药防治天然胡杨林的主要食叶害虫春尺蠖；使用直升机喷洒森得保可湿性粉剂和1．2％苦参碱·烟碱乳油两种生物杀虫剂，防治面积合计300hm2；使用森得保可湿性粉剂的虫口减退率达到90％，使用1．2％苦参碱·烟碱乳油的虫口减退率达到99．57％，结果表明：直升机防治胡杨林春尺蠖效果显著，两种杀虫剂均达到了较好的防治效果，飞行作业参数为，每架次作业面积66．67hm2，每秒作业面积0．12hm2，每架次作业时间546．47s ，每秒喷洒量366g ，每小时飞行5架次，每架直升机每天飞防面积2666．67hm2。%The purpose of the article is to prevent A pocheima cinerarius Erschoff in natural populus with biological insecticides sprayed by helicopter .The method is to spray two biological insecticides wettable powder of Sendebao and 1 .2% concentration's matrine-nicotine missible oil these two biological insecticides by helicopters for 300 ha .The results show that the population reduce rates of Wettable powder of Sendebao and 1 .2% concentration's matrine-nicotine missible oil are 90% and 99 .57% respectively .The article summarizes that the helicopter's spraying two kinds of bio-insecticides are both having obvious control effects of A pocheima cinerarius Erschoff .The parameters of the flying operation are as follow :each helicopter's task area is 66 .67 ha .,the operation area per second is 0 .12 ha .,each helicopter's task time is 546 .47 s ,the spraying quantity per second is 366 g ,the number of helicopters per hour is 5 ,the operation area of a helicopter per day is 2666 .67 ha ..
展开▼
