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:美国白蛾主要危害四旁和园林绿化阔叶树 ,具危害重、繁殖快、传播途径广等特点。多年来辽宁省主要应用仿生药剂和菊酯类、有机磷类等速效药剂防治 ,虽能有效地控制疫情 ,但后两类药剂具有毒性大、残留高、污染环境等缺点。本试验采用以天然中草药为主要原料的新型植物性杀虫剂———烟·参碱乳油进行防治 ,不但具有高效、低毒、低残留等特点 ,且施药后 4d ,三种浓度对白蛾幼虫的死亡率均可达 10 0 % ,击倒速度明显快于灭幼脲Ⅲ号。
: The United States white moth main hazards and landscaping broad-leaved trees, with heavy damage, rapid propagation, wide transmission and so on. Over the years Liaoning Province, the main application of biomimetic agents and pyrethrins, organic phosphorus and other quick-acting agents to prevent and control, although the outbreak can be effectively controlled, but the latter two types of agents with toxicity, residual high, polluting the environment and other shortcomings. In this experiment, natural herb medicine as the main raw material of new plant insecticide --- smoke · ginseng EC for prevention and treatment, not only with high efficiency, low toxicity, low residue and other characteristics, and after 4 d, three concentrations of dialogue Moth larvae mortality rates were up to 10%, knockdown rate was significantly faster than meflorazone III.