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莲藕腐败病是莲藕上最主要的病害。在防治上采用轮作换茬、改进施药方法可取得一定效果，但药剂防治仍是综合防治中的一种有效措施。本文采用甲基托布津、多菌灵、代森铵等药剂做试验，得出叶面喷雾法以２５％多菌灵、药土点穴施法以５０％速克灵防效为最佳。
Lotus root rot disease is the most important disease on lotus root. In the prevention and control on the use of crop rotation, improved methods of application can achieve some results, but the prevention and treatment of pesticides is still an effective prevention and treatment measures. In this paper, thiophanate-methyl, carbendazim, and danshen ammonium and other agents to do the test, the foliar spray method with 25% carbendazim, medicine and earth acupuncture points to 50% Klinking effect is best.