5种除草剂对薇甘菊的防除效果

目的]筛选薇甘菊的有效防治药剂。方法]通过小区试验研究5种除草剂对非耕地薇甘菊的防除效果。结果]药后45 d,5种除草剂防除非耕地薇甘菊效果均在92%以上,70%草甘·三氯吡、24%滴酸·二氯吡的防除效果达96.00%,同品种除草剂不同施药处理防除效果差异小,不同品种除草剂防除效果差异不显著。结论]建议防除薇甘菊用药首选70%草甘·三氯吡、24%滴酸·二氯吡,88.8%草甘膦铵盐、90%草甘膦铵盐+苄嘧磺隆、36%2甲·草甘膦作储备农药交替使用,施药剂量采用常规剂量。

Controlling Effect of 5 Herbicides on Mikania micrantha

Objective] The aim was to screen out effective control herbicides on Mikania micrantha. Method] Through plot experiment, the controlling effects of 5 herbicides on non-farming Mikania micrantha were studied. Result] The results showed that: the prevention effect of 5 kinds of herbicides on non-farming Mikania micrantha had reached above 92% after spraying for 45 d.Among them, 70%glyphosate triclo-pyr and 24% drop acid clopyralid could obtain an high effect about 96%.The difference of same herbicide with different spraying process was small, while the controlling effect of different varieties was not significant.Conclusion] It is suggested that the preferred choice for preventing Mikania micrantha was 70% glyphosate triclopyr or 24% drop acid clopyralid.88.8% glyhosate ammonium, 90% glyhosate ammonium +bensulfuron-methyl and 36% dimethyl glyphosate could be used interchangeably with conventional dosage for reserve herbicides .