论文部分内容阅读
目的:筛选柴胡根腐病防治效果最佳、农残低的药剂。方法:用市售11种常见药剂对柴胡根腐病进行防治(灌根处理),检测其防治效果和百菌清农药残留。结果:药剂中75%百菌清的防治效果最佳,70%甲基硫菌灵较好,80%代森锰锌次之。在第48天时,柴胡根中已检测不到百菌清。结论:柴胡根腐病防治中,可用百菌清、甲基硫菌灵和代森锰锌这三种药剂交替、轮换使用。使用百菌清48天以后不存在农药残留问题。
Objective: To screen the best prevention and cure of Bupleurum root rot with low pesticide residues. Methods: The 11 kinds of common commercial agents on the prevention and treatment of Bupleurum root rot (irrigation root treatment), test its control effect and chlorothalonil pesticide residues. Results: The effect of 75% chlorothalonil was the best, 70% thiophanate-methyl was the best and 80% mancozeb was the second. On day 48, no detection of chlorothalonil was detected in the Bupleurum root. Conclusion: In the prevention and cure of Bupleurum root rot, three kinds of agents, chlorothalonil, thiophanate-methyl and mancozeb can be alternated and used alternately. After using chlorothalonil 48 days there is no pesticide residue problem.