What is the best weedkiller for marestail?
Pearl is a total weedkiller and will kill Mares tail, weeds and grass in about 7-10 days. It will kill the horsetail systemically, right through to the root and treated plants will not grow back. You may need to treat new plants that grow from untreated roots, but once sprayed they too will be completely controlled.
What herbicides kill marestail?
With widespread resistance of marestail to glyphosate and ALS-inhibitor herbicides, growing Liberty Link soybeans in conjunction with applications of burndown and residual herbicides followed by application of POST Liberty herbicide is the most effective system for controlling and/or managing GR marestail.