Dale from Carbondale, Ks writes
Using a product with any of these active ingredients with help with Yellow Trefoil control,
2,4-D, MCPP, dicamba, clopyralid or triclopyr. Also Glyphosate (roundup) is non-selective and can also be used to kill yellow trefoil in landscape beds, and along curbs, sidewalks and driveways. Some products that contain these active ingredients are Hi-Yield 2, 4-D Selective Weed Killer, Fertilome Weed Free Zone and Crossbow Specialty w/ Triclopyr.
Answer last updated on: 06/18/2014