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John from Mundelein, Illinois writes

Will Tenacity Herbicide eradicate black medic and quackgrass?


No, Tenacity is not labeled to treat black medic or quackgrass per the product label. The common recommendation is to kill the quackgrass with a glyphosate product like Roundup QuikPRO and then reseed after 2 weeks.  For Black Medic, if you have cool season turf then we would recommend Hi-Yield Triclopyr Ester, if you have a warm season grass then we would recommend a product such as Surge Broadleaf Herbicide. Please be sure to review the product labels for your turfgrass and mix rates.   

Answer last updated on: 08/23/2021

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Tenacity Herbicide

Tenacity Herbicide

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