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稻蓟马在我县双晚秧苗上发生最多、为害最重,每年从秧苗立针现青到大田移栽,需打化学农药5—6次才能使之免受为害。根据用手蘸水掠动稻苗检查蓟马密度的道理,1977年6月底到7月初,我们在本县田店公社红卫大队做了湿布拖蓟马试验,效果很好。一、具体做法与效果(一)拖布宽度依厢面而定。我县双晚秧田都是厢宽4尺,用蚊帐纱布作拖布,其宽度以略宽于厢面定为5尺为宜(因为蚊帐纱布容易皱缩),长是7尺。每次用后只要及时洗净晾干,一块拖布使用两年不成问题,因每年只在双晚稻秧田期间用。
Rice thrips occurred in my county double late seedlings, the most damaging, every year from the green seedling stand to field transplants, the need to fight chemical pesticides 5-6 times to make it from harm. According to the reason that the density of thrips was checked by hand brushing rice seedlings, from the end of June 1977 to the beginning of July, we did a wet thrip thrips test at Hongwei Brigade of Tiandian Commune in this county, and the effect was very good. First, the specific practices and effects (a) Mop width depending on the face. My county double late seedling fields are 4 feet wide, with mosquito net gauze as a mop, its width slightly wider than the plane set at 5 feet is appropriate (because of nets gauze easy to shrink), length is 7 feet. After each use as long as the timely wash and dry, a mop use two years is not a problem, because only in the double late rice seedling field.