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自1990年以来,落叶松绶尺蠖在鸡西地区落叶松人工林内连续发生,严重影响树木生长。为此,进行了防治试验研究,结果表明:烟剂防治最佳时间在7月10～13日,用5%林丹杀虫烟剂防治3～4龄幼虫试验,用药量为7.5 kg/hm~2,防治面积2000 hm~2,防治效果达93.5%;喷雾防治幼虫最佳时间在7月5日前后,用25%灭幼脲Ⅲ号胶悬剂防治3龄幼虫试验。用药量为150 g/hm~2,防治效果达89.85%;喷粉防治成虫最佳时间在成虫羽化高峰期6月3日前,用3%林丹粉剂防治成虫试验,用药量为11.3kg/hm~2,防治效果达89.6%。
Since 1990, Larix sylvestris occurs continuously in larch plantation in Jixi, which seriously affects the growth of trees. Therefore, the control experiment was carried out. The results showed that the best time for the control of tobacco smoke was on July 10 ~ 13, and the control of 3 ~ 4 instar larvae with 5% lindane insecticide smoke was carried out with the dosage of 7.5 kg / hm ~ 2, the control area of 2000 hm ~ 2, the control effect of 93.5%; spraying the best time to control larvae before and after July 5, with 25% mefenapat Suspension III control third instar larvae test. The dosage of 150 g / hm ~ 2 and the control effect reached 89.85%. The best time for powdering prevention and control of adults was 3% lindane powder to control adults before the June 3 emergence peak, and the dosage was 11.3kg / hm ~ 2, control effect of 89.6%.