Customer Reviews for Tenacity Herbicide

I'm surrounded by crabgrass on 3 sides. It doesn't matter now thanks to Tenacity. Been using it 3 years now and plan to continue. I even got the added bonus of it working on yellow nutsedge as well. I can't imagine being without it again. Thank you Syngenta!!!

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Great product, a little preparation-intensive, but works well on creeping charley, nimblewill, and yellow nutsedge!

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Purchased and applied as directed. All it did was turn the crabgrass white while fresh green crabgrass grew around it. A total waste of time and money. Don't even want to give it away so someone else. Dont want to waste their time on it. Better off to buy something from menards or lowes that works as advertised.

  Expert response:
We apologize you did not achieve the intended results. We would welcome the opportunity to troubleshoot the application to help get you the results you need. Please contact us at your earliest convenience!

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Great product that is easy to work with. I used it as a post emergent first and began to see initial results on day 3. A lot of whitening visible by day 7. It is the only preemergent that can be used while seeding your lawn so a big plus for me since I over seeded all of the dead spots in my lawn that were overtaken by the weeds I sprayed.

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took out crabgrass and creeping charlie without damaging my lawn

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We have been battling strange weeds for years and this is clearing them up.

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This products takes some time to kill the plant but it does the job effectively... just don't anticipate an "instant kill" like some other products.

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I loaded up a field king backpack sprayer with tenacity, surfactant, and dye as directed. You definitely need to die or you have no idea where you sprayed. One pass did a lot of damage to the crab grass, even pretty established plants, with no damage to the lawn. I'm very pleased with it.

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This is my first time using Tenacity. The primary reason is to kill the Creeping Charlie that has started invading my lawn. I made a 2 gallon batch according to instructions. Tenacity 1 tsp., dye 1 tsp., and surfactant 3 tsp. . After watching several you tube videos, I was careful to not over apply. After 1 week the grassy areas have turned white, but the Creeping Charlie is barely affected. I am prepared to make additional applications according to need. I am aware this could take a couple of months so I am not disappointed at this time. Bob S.

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This product worked as advertised. Definitely impressed and glad I purchased it for my tall fescue grass and herbicide control.

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We have tried everything to rid of crabgrass, without killing the lawn...or our neighbors' dogs. Nothing really did the trick. Out of sheer desperation, we tried Tenacity, It works like a charm! Just one teaspoon in 2 gallons of water.

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Easy to mix, the directions on the bottles are pretty clear. The dye washes off with water so don't be alarmed if you get it everywhere. At first I didn't think it was going to work but after about a week all my crabgrass turned white, so be patient. Overall I satisfied with the results.

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This decisively killed weeds that other herbicides I've tried wouldn't touch. I wish I had bought it long ago.

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Followed directions and it didn't work. It killed some grass but not the creeping Charlie.

  Expert response:
We apologize you did not achieve the intended results. Some weeds may require repeat treatment. We would welcome the opportunity to troubleshoot the application to help get you the results you need. Please contact us at your earliest convenience!

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Holy crabgrass killer.Didn't think it worked a day later they turned white and started to die off

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Just put down the second application about ten days ago. It worked Great killing crabgrass turning it white. Other weeds not so much. Looks like it had no effect at all on nutsedge and less then desired effect on carpet weed. I have had Poa Annua so I'm hoping it works to stop that next year. Had been using another product that worked well on it...

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Great product! Fast shipping! Reasonable price! No more Creeping Charlie, Crabgrass or Clover! (the dastardly 3 C's) If I could change one thing it would be a larger surfactant, as there is not enough to finish the job with the other 2 chemicals. I will be back, and recommend to friends and family. Thanks! :)

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Works Great . The only stuff that does work post emergent

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Tenacity is one of the best herbicides you will find. Fast shipping and at a great price.

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The entire process was perfect. Excellent selection

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Very happy to find a product that kills henbit for a year. Reasonable price for the product and not difficult to apply.

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Love Tenacity but 1st time buying from this company. Wish you would include instructions on how to use the bottles. Appears they have premeasured areas, but couldn't figure out how to make them work. As expected, all the weeds in my yard started dying within a week. Will reapply within the recommended 2-3 week timeframe so should have a beautiful lawn by mid spring. Definitely recommend Tenacity!! 4stars because of the bottles, not the product.

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Very good product I have used it for years now. A Little but goes a long way

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This is my third season using Tenacity. Tenacity has done a good job eliminating most weeds in my lawn. It may have reduced POA triv and annua. But I spot spray that stuff with glyphosate, so I don't know how much of the reduction is due to Tenacity. Still nice to see it turn white. Highly recommend Tenacity if you are looking to step up your lawn game

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Followed directions, maybe just a little heavy handed, be patient it takes about 2 to 3 weeks. You will see it start to work, weeds start to turn white, some sections of my yard had so many weeds it looked like it snowed. So happy the dandelions and clover are gone. Looking forward to great looking lawn this year.

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I purchased the tenacity with the recommended products from this site. I now have white patches on my lawn. It took two applications and still there were parts of my lawn that I had to de-weed by hand. I'm not sure of white my next step will be in that as I stare at the white patches, I truly don't know what else to do. If anyone has any suggestions, please don't hesitate to share it here. My lawn has white patches, dead patches, and patches of compost and new seeds that I put down. I'm not a happy gardener right now. :(

  Expert response:
We are sorry to hear your experience was unsatistory. Per the product label Yellowing or whitening of the turf after a broadcast application of Tenacity Herbicide is caused by the loss of chlorophyll and is normal. The product label states, Tenacity may cause temporary whitening of turfgrass foliage. In general, symptoms appear five to seven days after application and last for several weeks. A repeat application to the same site causes less whitening of the plant tissue.

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I used this system and have had 0 results. I will say I have not done a second application yet...but first application has shown 0 results on the crabgrass I sprayed. Very disappointed!

  Expert response:
Tenacity Herbicide when mixed with a non ionic surfactant will control crabgrass up to the 4 tiller leaf state only and is best applied when it is young and just emerges for best control and may require repeat treatments. For more mature crabgrass it would not control it at all so timing is key.

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It works to certain extent, but not really worth the price.

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I received my order faster than expected. FYI, I was expecting Tenacity to turn my yard white, it did not. So in a couple weeks, I'm broadcasting that stuff over my extremely weedy lawn. Wish me luck.

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I put this down mixing it on the heavy side of the directions. Been over two weeks no change. Still have weeds.

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