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[目的]筛选防治火龙果桑白蚧有效的杀虫剂。[方法]以11种不同类型的杀虫剂、22种浓度处理对火龙果桑白蚧进行了田间药效试验。[结果]药后14 d,22.4%螺虫乙酯SC 4 000倍液的防治效果最好,为95.24%,其次是22.4%螺虫乙酯SC 5 000倍液和农地乐EC1000倍液防效较好,防治效果分别为92.05%和90.86%,毒死蜱EC 2 000倍液防治效果较差,只有67.08%。在生产中防治火龙果桑白蚧,建议用22.4%螺虫乙酯SC 4 000倍液、5 000倍液和农地乐EC 1 000倍液交替使用。[结论]该研究为果农防治桑白蚧科学合理用药提供了参考。
[Objective] The research aimed to screen effective insecticides for controlling dragon beech mulberry white scale. [Method] With 11 different types of insecticides and 22 kinds of concentration treatments, the field efficacy test was carried out on the white dragon fruit Kuwana scale. [Result] The control effect of 22.4% spirotetramat SC 4 000 times liquid was the best at 95.24% on the 14th day after drug treatment, followed by 22.4% spirotetramat SC 5 000 times and Nongdele EC 1000 times liquid prevention The effect is better and the control effect is 92.05% and 90.86% respectively. The control effect of EC 2000 chlorpyrifos is poor, only 67.08%. In the production of dragon fruit mulberry white scale prevention and control, it is recommended to use 22.4% Spirotetramat SC 4 000 times, 5 000 times and agrofood EC 1 000 times alternately. [Conclusion] The study provided a reference for the prevention and control of P. caladium in scientific and rational use of pesticides.