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[目的]寻找防治温室黄瓜白粉病的有效药剂。[方法]选择百菌清、灰霉净、疫霉净3种烟剂,采用烟熏法对温室黄瓜白粉病进行防治。[结果]3种烟剂中,百菌清烟剂防治黄瓜白粉病的效果最佳,在病害发生初期开始用药,每次施药量为1 500 g/hm2,施药间隔期8 d,连施4次,防治效果可达90.7%以上。[结论]百菌清烟剂可以在温室黄瓜白粉病的化学防治中大力推广。
[Objective] The research aimed to find effective medicament for controlling cucumber powdery mildew in greenhouse. [Method] Three kinds of tobacco smoke, chlorothalonil, Phytophthora, and Phytophthora capsici were selected and smoked to control the cucumber powdery mildew in the greenhouse. [Result] Among the three kinds of tobacco smoke, chlorothalbuterol had the best control effect on cucumber powdery mildew, and started the treatment at the early stage of the disease with the dosage of 1 500 g / hm2 and the spraying interval of 8 d Shi 4 times, control effect of up to 90.7%. [Conclusion] Chlorothalonil tobacco smoke could be promoted in the chemical control of greenhouse cucumber powdery mildew.