江西农业学报2026，Vol.38Issue(5)：67-76,10.DOI:10.19386/j.cnki.jxnyxb.2026.05.009
不同除草剂组合对加拿大一枝黄花成株期的防除效果评价
Control Effect of Different Herbicide Combinations on Mature Solidago canadensis
摘要
Abstract
To address the problem of the difficulty in controlling the invasive plant Solidago canadensis due to its lignified stems and well-developed root system at the mature stage,this study conducted a field experiment to systematically evaluate the control effects of 14 herbicide combinations,aiming to screen out highly effective and long-lasting herbicide combinations.The experiment was carried out in a typical invasive habitat,with 14 herbicide combinations(T1～T14)and one water control.The above-ground damage,fresh weight of plants,root mortality rate,and the number of new shoots were monitored at 15,30,60 and 90 days after application,and the plant control efficacy and fresh weight control efficacy were calculated.The results showed that there were significant differences in control efficacy among different combinations.T4(31%benzoylpyrazole·glyphosate)had outstanding quick-acting efficacy,with plant control efficacy and fresh weight control efficacy of 81.82%and 85.70%respectively at 15 days after application.By 90 days after application,T4,T10(40%fluorochloridone·chlorflur EC+43%glyphosate potassium salt AS+adjuvant),and T14(70%glyphosate+triclopyr SP+adjuvant)all achieved 100%root mortality and no new plants,demonstrating complete control efficacy.T5～T8(24%aminocyclopyrachlor AS+10%bixenzate OD+adjuvant)had initial plant control efficacy below 10.00%,but effectively suppressed new shoots.By the end,the root mortality rate was 63.20%～89.78%and no new plants,exhibiting a delayed but persistent control characteristic.Correlation analysis further revealed no significant linear correlation between root mortality and the number of newly emerged plants,indicating that for mature S.canadensis,"complete kill"and"regrowth suppression"are relatively independent dimensions of control efficacy.This study deepens the understanding of herbicide efficacy from the perspectives of action patterns and mechanisms,providing a basis for herbicide selection and theoretical support for constructing an Integrated Pest Management(IPM)technology system based on chemical control for invasive species.关键词
加拿大一枝黄花/除草剂/化学防除/防效效果/田间试验Key words
Solidago canadensis/Herbicide/Chemical control/Control efficacy/Field trial分类
农业科技引用本文复制引用
熊磊,赵晓林,万传旭,胡承贤,韦小恋,孙杨,黄水金..不同除草剂组合对加拿大一枝黄花成株期的防除效果评价[J].江西农业学报,2026,38(5):67-76,10.基金项目
江西省重点区域重点物种防控技术应用项目(2025). （2025）
