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Quintin from Kansas City writes

What’s the difference between Tenacity Herbicide and Quinkill Max?

I have a fescue lawn, I like that tenacity turns the weeds white making it easy to spot. I want to kill crabgrass and grassy weeds. For tenacity what’s the process for applying when overseeding?

Answer:

Tenacity Herbicide and QuinKill Max have different active ingredients and different modes of action. QuinKill contains quinclorac, which is a post-emergent herbicide targeting primarily grassy weeds like crabgrass. Tenacity can be a pre-emergent or a post-emergent, depending on the application and the target weeds. There is a complete list of action on the product label. If you are overseeding with fescue, then you can apply Tenacity at or as close to seeding as possible, except for fine fescue seedings. Avoid applications to newly emerged seedlings until established (4 weeks or after the second mowing, whichever is longer). Please refer to the product label for complete application instructions.

Answer last updated on: 04/06/2018

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