Kills poa annua in centipede
By Rich on 02/22/2015
Verified Purchase
After fighting poa annua for the last few years it is good to find something that works. It seems expensive for such a small amount of product, but the amount used per gallon of water is so small it is cost effective. Works much better than the atrazine I used before. Great product and produced results in only 2 weeks.
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67 of 70 people found this review helpful
It killed Johnsongrass!
By Anonymous on 07/01/2013
Verified Purchase
Quackgrass Dead On Arrival!
By Ken on 05/26/2016
Used properly per instruction, quack grass started turning yellow on 3rd day, bright yellow by the 7 day, and wilting over 2 weeks out. Must use the Dyne Amic with this product. See my other review for (Drive) product. Newly planted Princess 77 lawn. Killed all the Quackgrass, the Bermuda kept smiling!
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45 of 49 people found this review helpful
Awesome
By Jeff on 07/07/2015
I had a bad infestation on nutsedge and we were getting a lot of rain everyday decided to mix it up and give it a shot in front of the rain one day only three hours before receiving half an inch of rain but within 7 days the sedge is already 90% dead. Well worth the money
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43 of 45 people found this review helpful
Green Kyllinga in Florida St Augustine grass
By Homeowner on 04/30/2014
I applied Certainty to my St Augustine lawn in April. The St Augustine did not show any signs of stress. Kyllinga did not shrivel up and die the next day, but it did stop coming up in my lawn. I'm very satisfied. The rest of the 1.25 oz bottle should last me for years to come so it is cost effective in the long run.
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25 of 28 people found this review helpful
Worked! Killed Quack and Crab Grass Not Kentucky Bluegrass
By Tracy on 06/18/2020
I was worried about using something this expensive and not knowing what I was doing. We also have Kentucky blue grass and I did not see that it was one of the approved grasses that it would not hurt. I used 5 small scoops for every two gallons and also used Surfactant and blue dye to make sure it was evenly sprayed. The First week or two I thought I had wasted my money. Nothing looked like it was going to die, and it stunted the growth of my whole lawn to the point that we only had to mow it after two weeks instead of one. I was worried it was going to kill my whole lawn. After about a month it noticed that the quack and crab grass was turning brown. It has now been a couple months and my normal grass is doing fine and I have a bunch of dead areas where all the quake/crab were really thick and I am putting down some extra seed to get something growing there. Hope this helps.
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19 of 19 people found this review helpful
The best results ever!
By Dennis on 08/08/2015
Verified Purchase
This stuff really works. Results are slow, 2-3 weeks, but follow directions, use a good quality surfactant, and watch weeds disappear. Even with the blistering heat from this summer, no turf damage, no discoloration- except for the dying weeds, both sedge/grasses and broadleaf! In my centipede lawn, the best results I've ever achieved.
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14 of 16 people found this review helpful
Very Effective
By Michael on 05/15/2020
This is impressive. I have tried using products sold at local retailers to kill Poa Annua, and have had poor results. I balked at this at first, due to price. After buying, I applied according to the instructions, and it treated about 3000 sq. feet (6 gallons) with just three scoops. I saw results after 4 to 6 days, and after two to three weeks all the poa was totally destroyed. It had no negative effect on actively growing Bermuda. The small quantity should last me at least two or more seasons, due to the potency. This stuff works. Just follow the instructions, and be sure to use a surficant.
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11 of 14 people found this review helpful
Using Certainty
By Marilyn on 10/02/2016
Great product
By Shareem on 05/08/2016
Certainty worked better than I expected . I used it to control Tall Fescue in my Bermuda during spring .It worked incredibly well ! It also destroyed crabgrass nuts edge and every other weed listed on its label growing in my yard . Buy it . You will not be disappointed .
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9 of 11 people found this review helpful
Great spot treatment product
By Eric on 07/05/2019
Expensive but works well
By Jim on 05/12/2015
Verified Purchase
Nutsedge infestation
By Reuben on 07/24/2020
After spending hundreds of dollars in the last three years with a professional weed control company trying to control Nutsedge that has taken over my lawn I finally searched online to see if I could find an herbicide that was legal in California. Certainty Herbicide from DOMYOWN is listed as an effective herbicide for several types of Nutsedge so I purchased it together with an additive recommended to mix with Certainty. I applied this mixture to one/half my lawn and did not water my lawn for two days and four days before cutting my lawn. Two days after cutting my lawn the one/half my lawn that was not treated was again showing the rapid growth of Nutsedge but the one/half treated had NO Nutsedge. This is a most positive result and better than three years of multiple applications each summer attempting to control Nutsedge. Time will tell, but at this point I am excited to think I may not continue to be harassed by a weed that otherwise I felt I had no control.
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8 of 8 people found this review helpful
Certainty Herbicide
By Jason on 03/23/2018
Went down fine, I used some blue dye from tractor supply and 80/20 surfactant I also got there. I used a 4 gallon back pack sprayer which per the directions of it was basically 2 large scoops per gallon. So 8 scoops plus the dye plus the recommended amount of surfactant. It was quite a bit of mixing. I did that 5x and that covered my entire Bermuda yard. I went heavy because I had a pretty substantial amount of Johnstonville blue grass infesting my sod. It's too early to tell, because it's only been down a week. But I can tell the blue grass doesn't look lush and green like it did. I'm guessing it's working. The process is long. 4,000 sq feet per backpack sprayer was tiedious. I was meticulous about covering the entire yard. So block out about 1-2 hours if your using my method. I hope the results end up being worth it.
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6 of 9 people found this review helpful
Very Effective on Nutsedge
By Ken on 08/21/2020
My Certainty
By Ronald on 07/24/2020
After talking to Customer Service they recommended I use Certainty for control of Dallisgrass. Ordering was easy. Shipping went well. The weather in San Antonio, Texas has been in the high 90's and over 100F for over 3 weeks without rain. Thus i have not used.
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3 of 6 people found this review helpful
REALLY WORKS!!!!
By Ogsan1 on 09/18/2021
POA's greatest enemy?
By Philip on 03/12/2022
Initial results on eliminating POA in my dormant Bermuda have been impressive. Don't forget the wetting agent. Two weeks to see yellowing, however, even with the warmth and rain, germinated POA has been stunted significantly. Less seeding as well. Applied Valentine's Day weekend. Will check with DoMyOwn to see if a diluted second application will stunt already emerging Bermuda growth.
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3 of 3 people found this review helpful
Powerful herbicide that kills poa trivialis
By John on 05/01/2020
I thought that this product was overpriced until I read the directions and realized how little is required per gallon. After application, I waited 2 weeks and the poa trivialis is definitely dying. I will make a second application today and use a pre-emergent next spring to hopefully contain this monster.
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2 of 3 people found this review helpful
Great product
By Pete on 07/03/2020
Very effective on Johnson grass. I'm having to learn the difference between Johnson grass, crabgrass and goose grass. They all three look similar. Certainty does great on Johnson grass but takes a couple of weeks. Doesn't do anything on crabgrass or goose grass. At least next year I'll have Johnson grass under control.
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2 of 2 people found this review helpful
Great Transaction
By Becky on 10/25/2019
Johnson weed killer
By Butch on 07/31/2020
Johnson grass
By Brandon on 10/02/2020
I had a ton of johnson grass coming up through sod that was installed 2 months prior. The johnson grass was in the yard that wasn't killed prior,I was too impatient. Anyways this product completely got rid of it. I would highly recommend this product. Surprisingly the grass actually did really well no stress appeared. It also did very well on the nut grass
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1 of 1 people found this review helpful
CERTAINTY HERBICIDE
By Bill on 09/27/2020
Nutsedge destroyer!
By Mark on 07/20/2022
I have only used this once on a large patch of nutsedge in my lawn, in my neighbor's flower bed, and in another neighbor's lawn all in the same day. It has been 6 weeks now and we are completely nutsedge free. Me and my neighbors are so pleased. It was a little slow to show it was working, but don't let that fool you! The kill rate with this stuff was 100% with just one application. I'm shocked that 6 weeks later there is still zero nutsedge in my lawn. I mean one of it came back. I was expecting at least some nutsedge to pop up that hadn't been sprayed but, no there is nothing. I don't have enough good things to say about this product. It simply works. Location: Austin TX Grass type: Bermuda.
Still waiting to see...
By Rhoda on 03/24/2023
I bought Certainty to take care of the poa annua that was trying to take over my yard. I have bermuda grass and after testing the soil temperature to make sure the bermuda was still dormant, I sprayed my lawn and 5 feet into my neighbor's yard. Now it's wait and see since getting rid of poa annua is not an overnight process. I just want to prevent it from going to seed.
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0 of 1 people found this review helpful
Johnson grass
By Randy on 10/27/2023
I used certainty on what I would call Johnson grass broad leaf grass that growers a stem of seeds.the stuff was expensive so I put 3 little scoops about half a teaspoon in 2 gallon of water in a back pack sprayer about 3 weeks ago in Oct. Spayed where ever I saw it heavy in some areasnd had just enough to cover all the areas,all dead! I'll have to spray again next year when I see before it seeds,but I have several years of product left.sprayed it on a burmuda grass called celebration no damage.
Poa annual
By Jason on 03/22/2024
