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春尺蠖是墨玉县桑树的毁灭性害虫,对蚕桑业的威胁很大。一九六七、一九六八、一七九一、一九七二年采用飞机喷药防治,飞行401小时,防治86.7万亩次。由于采用了简(?)测报法,准确地掌握了飞机防治适期的起止日期,一九七一年开始在每亩次受药量不变的情况下,将药液量每亩3公斤降至2.25公斤,使飞机每架次所装药液1,000公斤从防治333亩提高到444亩,从而减少了飞行次数,为国家节省了近两万元的飞行费用。
Spring ruler is a devastating insect in Mo Yu County mulberry tree, a great threat to the sericulture industry. In 1967, 1968, 1791 and 1972, aircraft were used for spraying and control, flying 401 hours and controlling 867,000 mu. Due to the adoption of the simplified method of measuring and reporting, it accurately grasped the starting and ending dates of the plane control period. Starting from 1971, at the same dose per mu, To 2.25 kilograms so that the 1,000 kilograms per kilogram of liquid handled by the aircraft will be raised from prevention and treatment of 333 mu to 444 mu, thus reducing the number of flights and saving nearly 20,000 yuan of flight costs for the country.