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1977年由农林部林业局组织林业地面超低容量喷雾技术试验组,在我县进行了地面超低容量防治松毛虫试验和生产防治.全县总共防治10万亩,历时60天,用工2,280个,使用超低容量药剂9吨.平均每亩用药1.8两,用工0.023个,杀虫效果平均达85%以上.每亩成本费0.25-0.45元(药剂不同,费用不同),比工农-36型担架式喷雾机每亩节省0.21-0.41元,省工0.17个,节省原药4钱左右,解决了山路崎岖,水源困难,劳力紧张等问题,深受群众欢迎.
In 1977 by the Forestry Department of the Ministry of Agriculture and Forestry forestry ultra-low capacity spray technology test group, in my county conducted a ground ultra-low capacity control pine caterpillars test and production control .A total of 10 million mu in the county control, which lasted 60 days, employment 2,280 , The use of ultra-low-volume pharmaceutical 9 tons average 1.8 yuan per mu medication, employment 0.023, insecticidal effect of an average of 85% or more per acre costs 0.25-0.45 yuan (different pharmaceutical costs) than the worker-peasant -36 Stretcher sprayer save 0.21-0.41 yuan per mu, provincial workers 0.17, saving about 4 money around the original drug to solve the rugged mountain, water problems, labor constraints and other issues, welcomed by the masses.