But again I'm not sure how it interacts with centipede. Move along. There is a 40% mesotroine in this formula which makes it perfect for the tenacity lawn. Re: Tenacity and crabgrass Post by cityofoaks » Sun Oct 04, 2020 11:59 pm The preemergent if gotten out on on time at the correct rate should leave you with very little crabgrass you actually have to spray out. It can be used to remove crabgrass, nimbleweed, bentgrass and other difficult to control weeds. The Syngenta Tenacity Turf Herbicide is another great crabgrass killer that I tried. However, this grass is simply the best for Turf Grass. Hit a dandelion once with 2,4-D, and it's done. It should be noted that tenacity only lasts a few weeks in the soil, and it’s not the best pre-emergent. Rather than alert everyone that your lawn is full of junk I'd rather do what we do and … Glyphosate will for sure give me a good kill but will also sacrifice any existing bermuda and centipede it touches. It needs to reach the soil to work as a pre-emergent. Hit mature crabgrass once with Tenacity or Drive XLR8, and you set it back some but it recovers. Its active ingredient, mesotrione, is based on a naturally occurring compound produced by the bottlebrush plant (Callistemon citrinus) that … Tenacity weed killer can be used as a pre-emergent herbicide or as a post-emergent program control. What to do? Maybe one or two companies using tenacity for weed control and crab. Tenacity can be applied to existing weeds at seeding and provide residual control to continue keeping lawns and turfs looking good. See label for a … Tenacity Weed Killer Overview. Crabgrass is an annual weed that frustrates homeowners year after year. Tenacity pre-emergent Tenacity Turf Herbicide will kill grassy weeds and won’t kill lawn grass. Tenacity herbicide can be used for pre- and post-emergence control of more than 46 broadleaf weed and grass species. It’s a systemic herbicide which doesn’t mean much to you I know. The tenacity weed control was an amazing choice and if it weren’t for the former, I would think this is the best. Tenacity herbicide will allow lawns to look well from the beginning. Its formulation contains 40% mesotrione, which is in the grade of commercial weed killers and is capable of controlling broadleaf and grassy weeds in the lawn before and after emerging. It removes broadleaf weeds such as clover, dandelion, and chickweed. The need for repeat applications of Tenacity is very clearly discussed both on the label and in literature. If you don’t water it in you’re essentially using it as a post-emergent. Tenacity will work on crabgrass and likely several (if not all) of the other weeds listed. The obvious thing: hit it again. The benefit of this is the herbicide affects the full cycle of the weed’s life, making it an effective solution for killing of crabgrass completely. 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