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杉梢小卷蛾属鳞翅目卷蛾科小卷蛾亚科,是专门危害嫩梢的害虫。近几年来,在平原湖区,随着群众性造杉面积的不断扩大,杉梢小卷蛾发生日益普遍,危害日趋严重。据调查,潜江林科所的一片杉林被害率由1974年的87%上升到100%。幼虫蛀入嫩梢,致使杉梢枯萎,主梢被害有的双主枝竞争,有的多头丛生,有的高生长受到压抑,侧枝猛长呈乌巢状,严重地影响了杉木成林成材。为在短期内探索出防治杉梢小卷蛾的有效方法,我们遵照毛主席“同病虫害作斗争”的伟大指示,进行了观察与防治。
Shady small coil moths Lepidoptera involucraria small coil moth subfamily, is a special harm to young shoots of pests. In recent years, in the plains lake area, with the continuous expansion of masses of fir trees, the occurrence of snakehead moths has become more and more common and the harm is becoming more and more serious. According to the survey, the damage rate of a piece of forest in Qianjiang Forestry Bureau increased from 87% in 1974 to 100%. Larvae eaten into the shoots, resulting in withered withering, the main shoots were the main branch of the competition, and some long tufted, some of the high growth was suppressed, violent growth was black nest nest side, seriously affecting the success of Chinese fir forest. In order to find out an effective method to control Cercidiptera septentrionalis in the short term, we observed and dealt with it in accordance with the great instruction of Chairman Mao’s “struggle against pests and diseases.”