Customer Reviews for Tenacity Herbicide

Used recommended amount, 1/2 teaspoon. It took 7 days to start to notice the crabgrass turning white. Checked weeds along side of house yesterday, finally dying. tomorrow is 3 wks, ready for 2nd application. Put the right amount of dye in the 1 gal. sprayer and could hardly see it. I believe it took longer to act than what was written on the instructions. Hopefully it works better in the spring as a preemergent, or it's not worth the money.

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I tried this product out after watching a silver cymbal vid on you tube. Four days later still no results. So I tried a second application wi more tenacity than required five days later it's starting to work.

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Product does kill crab grasps but also kills other grasses around it as well. Must use extreme care when spraying if you just want to kill offending grasses.

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My lawn looks terrible. Full of polka dots of dying grass The weeds and crabgrass seems to be dying too however this is primary showing season for my lawn, but it looks like crap. The directions say J can apply follow up to get stuff I missed, but I really don't want my lawn to look so bad for the rest of the growing season. I know centipede is delicate, but, I'd rather rather pull the weeds myself.

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0 of 2 people found this review helpful

This product seems to have a lot of hype around it online so I figured I would give it a try. What I like: you can use it as a pre-emergent herbicide with new seeding What I don't like -- in post-emergent applications: 1) It is SLOW -- other herbicides seem to work much much faster than Tenacity. Results seem to take multiple weeks 2) Instead of turning weeds brown or yellow, it turns them white -- doesn't sound like a big deal but in practice the weeds actually become MORE noticeable. And because it's slow (see #1) you end up with weeks of white spots in your lawn 3) Some weeds appeared to need a second application after 2-3 weeks to fully knock them out. This is mentioned on the label but other herbicides seemed to knock out the same weeds with only one application

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After two applications on my nimblewill infested lawn, applied two weeks apart, I am seeing some browning of the target weed and no damage to the lawn. I am encouraged so far. Will apply again at the proper interval and hope for more progress. I used both other products with Tenacity that were recommended but did not find the blue marker to be very helpful. There was not enough contrast between it and the lawn to be able to see where I had been and where I needed to go.

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When I called customer support for the company that makes Tenacity, someone told me it could be reapplied every 10 days, but had to be applied only when it didn't rain for 2 more days after application. With the unpredictable rains in zone 6, this is quite difficult to do, but it was a very light rain the next day of only a couple of minutes. Also, my local landscaper stated it takes "weeks to show" effects, and by then there will be way too much bent grass. It's green so I'm living with it!! Confusing information annoys me with such a potent product. I don't want to harm my lawn by over applying this product. Also, I had an extremely difficult time removing the cap and had to use pliers. Then the cap was difficult to secure fully...tipped over and leaked like crazy.

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0 of 1 people found this review helpful

I tried reading that label on the bottle, but it was a little confusing. After searching the internet and reading many Q&A's, I found that you must use it with a surfactant and a dye marker, sweep areas with a single pass, and use it below 80 degree's F or there will be complications. Also, it will not be rainfast for at least 6 hours. After more reading, I find many users need a second application. ARGH! In the end, Tenacity seems to be killing nimblewill, clover, crabgrass and other broadleaf plants in lawn areas. No way to know for sure till next spring.

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I really wanted to like this product, but after my second year of using it I find it to be mediocre. I have followed the directions exactly including using surfactant, and my experience is that 1) it partially kills off some weeds, but leaves others unscathed (it's totally ineffective against clover), and 2) it takes forever. Do you like to wait six weeks for a weed to die? I don't. My dandelions are dying off, but the product works so slowly that they have had time to flower and seed. My lawn has the same or more weeds after two seasons on Tenacity than it did in the past using cheap and fast Weed-B-Gon.

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Did fairly well on chickweed and ok on dandelions. Probably would have performed better in late summer early fall with a follow up in spring. My yard is too large to handle the weeds and afford the ability to do so

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0 of 1 people found this review helpful

Almost 2 weeks now and some slight discoloration of the crabgrass stalks. Some heavy duty stuff at 1 tsp per gallon of water. Using on centipede and very hopeful for success. Instructions say it'll kill post emergent poanna as well. I haven't tried that yet, waiting on Summer heat to kill it and then use pre emergent next year.

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I applied this product on March 11 at the recommended rate per acre. So far on March 27, only the chickweed has shown signs of effectiveness. I have many other

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