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[目的]明确1.2%烟碱.苦参碱乳油对林业害虫落叶松舞毒蛾的田间防治效果及田间用量。[方法]采用随机区组排列试验小区,以邓肯氏新复极差分析试验结果。[结果]1.2%烟碱.苦参碱乳油对落叶松舞毒蛾田间用量在10-15 mg a.i./L时,1 d的防效在71.15%-92.73%之间;处理后3 d,10 mg a.i./L防效达到80%以上,15 mg a.i./L防效达到100%;7 d防效在84%-100%之间,15 mg a.i./L比氰戊菊酯66.7 mg a.i./L防效高,10、12 mg a.i./L与后者防效相当。[结论]1.2%烟碱.苦参碱乳油对林业害虫落叶松舞毒蛾具有优良的田间防治效果,使用质量浓度以10-12 mg a.i./L为宜。
[Objective] The research aimed to determine the field control effect and field application of 1.2% nicotine and matrine EC on forest gummy pests Lymantria dispar. [Methods] The randomized blocks were used to arrange the test plots. The results of the Dungeon new replica analysis were used. [Result] The control efficacy of 1.2% nicotine and matrine EC at the dosage of 10-15 mg ai / L for 1 d was between 71.15% -92.73% at 3 days and 10 mg ai / L control efficiency reached more than 80%, 15 mg ai / L control effect reached 100%; 7 d control effect between 84% -100%, 15 mg ai / L fenvalerate 66.7 mg ai / L anti Effective high, 10,12 mg ai / L with the latter control effect. [Conclusion] The 1.2% nicotine and matrine EC had good control effect on forest pest larvae, and the optimum concentration was 10-12 mg a.i./L.