Is it worth it? It will not work if you just spray it on and don't get rain or water it for a couple of weeks. All this from a unique active ingredient granted Reduced Risk Keep your lawn looking good, and you’ll see a lot fewer weeds. 100% Upvoted. This weed killer protects grass, shrubs, and trees when applied to the affected area. The active ingredient mesotrione that makes this herbicide tenacity work so darn well will kill: Bentgrass, Crabgrass; Dandelions; Clover, Nutsedge; Henbit; Foxtail; And over 40 other common household weeds. Tenacity has pre- and post-emergence activity on 46 dicot and monocot weed species. It will absorb and start working immediately, however, it can take up to 2-3 weeks before full death occurs on your weeds. But how good is it? A good quality non-ionic surfactant is recommended if weeds are present at time of application. From my own reviews and tests, this herbicide is one of the best crabgrass killers when used with Surfactant and Lazer Dye, meaning it does great as a post-emergent application. When applied as a pre-emergent, weeds absorb Tenacity during emergence from the soil. There is no such thing as a one shot kill on perennial weeds. Tenacity Herbicide is a selective pre-emergent and post-emergent weed killer designed to control weeds on turfgrass and lawns. Quackgrass (Elymus repens) is the hardest turf weed to control that I know of. Being a selective herbicide, Tenacity won’t kill grass that you planted, so you can apply it on your lawn without worrying. You can identify it by the long clasping auricles on its collar (Fig. Sell not virtue to purchase wealth, nor Liberty to purchase power. Here’s a list of weeds that Tenacity will kill: Barnyardgrass; Creeping Bentgrass; Annual Bluegrass; Buckhorn Plantain; Buttercup; Carpetweed; Common Chickweed; Mouse-ear Chickweed; Large Hop Clover; White Clover The wind, water, animals, and humans may spread the seed to other areas. Conclusion. For pre-emergent herbicides, you will find granules and liquid sprays. Because it spreads easily it’s best to not do any dethatching or aerating until it has been controlled. Read more. Tenacity Turf Herbicide. I deal with grassy weeds that are supposedly annual, but have been there since I graduated high school. What weeds will tenacity kill? http://turf.wsu.edu/wp-content/uploads/2013/09/Tenacity-NewHerbTurfEstab-DeptSeminar.pdf. After 7 days of tenacity on the lawn I'm beginning to see loss of green color, chlorophyll, in the weeds and only the weeds. As we mentioned before, Tenacity provides control of more than 46 broadleaf weed and grass species in turfgrasses. If you mix it as per the instructions on the box you’ll have no issues. oz/acre (4 oz/acre St. Augustine grass for sod production only) approximately one (1) week prior to, during, or after seeding. Repeat application after 2nd mowing or 3 to 4 weeks after emergence. Tenacity is a selective pre and post emergent herbicide concentrate that targets a variety of weeds such as Chickweed, Clover, Crabgrass, Dandelion, Foxtail, Henbit, and Nutsedge. Tenacity® herbicide gives you the option to treat cool-season turfgrass at seeding, to prohibit weeds from germinating, and give new grass a chance to flourish. The ingredients from the Label of Bayer’s Certainty Herbicide Tenacity is a great herbicide option for homeowners looking to treat problem weeds that are difficult to get rid of in their lawns. I’ve found that it spreads very easily, even after thinking I killed it off completely I’ve found more. There is no such thing as a one shot kill on perennial weeds. It's pricy but I know of no other chemical that will kill weed grasses … Log in or sign up to leave a comment log in sign up. But it’s important to remember that as it’s a warm season grass you’ll only be able to kill it during warm temperatures. It can be used to remove crabgrass, nimbleweed, bentgrass and other difficult to control weeds. But it doesn’t stop there. If your style is to count the number of glugs from the jug, there can be problems. FuzzeWuzze Posts: 819 Joined: Fri Aug 25, 2017 5:41 pm Location: Newberg, OR Grass Type: F: Mazama, B:Mazama/Bewitched Lawn Size: 2500sqft Mower: Yard Machines 21" Rotary. Tenacity is best used at low rates and repeated applications. It removes broadleaf weeds such as clover, dandelion, and chickweed. List of weeds Tenacity kills Barnyardgrass, goosegrass, carpetweed, dandelion, chickweed, clover, crabgrass (large & smooth), foxtail, henbit, purslane, thistle, yellow nutsedge, wild carrot, nimble grass, bentgrass, and many more. How to Renovate Your Lawn – Start to Finish, http://purdueturftips.blogspot.com/2014/04/weed-of-month-for-september-2013-is.html, https://extension.umd.edu/hgic/topics/nimblewill, https://extension.psu.edu/nimblewill-muhlenbergia-schreberi. 1. Neither of these products are as effective as other herbicides used in cool season turf but their safety to turfgrass seedlings makes them a good option. The active ingredient in this weed killer is mesotrione. I know. Will it kill all the weeds like crabgrass, dandelion and clovers? Related products: Roundup for Lawns Crabgrass Destroyer, Tenacity. Greg's Lawn Journal. All that high rate of triclopyr did was singe off the leaves. Start to Finish, http: //purdueturftips.blogspot.com/2014/04/weed-of-month-for-september-2013-is.html, https: //extension.umd.edu/hgic/topics/nimblewill, https: //extension.psu.edu/nimblewill-muhlenbergia-schreberi to 1000 feet. 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