【摘要】 [目的]旨在筛选出对水葫芦具有高效防除效果的除草剂，为水葫芦化学防治提供科学依据。[方法]选取9种市售除草剂，通过盆栽试验筛选其对水葫芦的抑制效果。为进一步评估药剂实际田间防治效果，对筛选出防效较佳的5种除草剂，进行田间药效试验。[结果]通过室内试验得出氯氟吡啶酯、五氟磺草胺、硝磺草酮、草铵膦和灭草松对水葫芦防效较好。田间对5种药剂进行评价，防治效果从高到低依次为：氯氟吡啶酯>灭草松>草铵膦>硝磺草酮>五氟磺草胺，氯氟吡啶酯具有最佳的防除效果，药量为36 g a.i./hm~2时，株防效达100%，鲜质量抑制率为99.36%。[结论]3%氯氟吡啶酯乳油是防治水葫芦的最佳药剂，其高效性为水葫芦的化学防治提供了有效方案。更多还原

【Abstract】 [Aims] This study aims to screen herbicides with high control efficacy against Eichhornia crassipes(Mart.) Solms, providing scientific evidence for the chemical management of this weed. [Methods] Nine commercially available herbicides were evaluated through pot tests to evaluate their activity to E. crassipes. Five herbicides demonstrating superior efficacy were further assessed in field efficacy trials. [Results] Laboratory tests identified florpyrauxifen-benzyl, penoxsulam, mesotrione, glufosinate-ammonium and bentazone as effective herbicides against E. crassipes. Field evaluations ranked their control efficacy in descending order: florpyrauxifenbenzyl > bentazone > glufosinate-ammonium > mesotrione > penoxsulam. Florpyrauxifen-benzyl exhibited optimal performance, achieving 100% plant density control efficacy and 99.36% fresh weight reduction rate at 36 g a.i./ha.[Conclusions] Florpyrauxifen-benzyl 3% EC represents the most effective herbicide for E. crassipes management,providing an efficient chemical control strategy for this species.更多还原