Displaying 1 to 14 (of 14 reviews)
13 of 13 people found this review helpful:
Kills poa annua in centipede
By Rich on 02/22/2015
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.
11 of 13 people found this review helpful:
It killed Johnsongrass!
By on 07/01/2013
After trying many products to kill johnsongrass, tried Certainty and in 10 days the grass was dead!
9 of 10 people found this review helpful:
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!
8 of 8 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.
7 of 7 people found this review helpful:
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
5 of 6 people found this review helpful:
The best results ever!
By Dennis on 08/08/2015
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.
3 of 3 people found this review helpful:
Expensive but works well
By Jim on 05/12/2015
Effective at controlling quickgrass.
3 of 4 people found this review helpful:
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 .
2 of 3 people found this review helpful:
By Al on 05/09/2017
Used as directed for nut sedges, first attempt very poor results. After three weeks, will reapply and will post update. The very thick nut sedge I had to use Round Up because it has taken over that area and was afraid to wait anymore for Certainty to work. Three stars and pending...
2 of 2 people found this review helpful:
By Marilyn on 10/02/2016
Works well in Sprayer. Expensive but if it rids yard of certain weeds, I am all for it. In the South, we really have a problem with Nutsedge.
2 of 2 people found this review helpful:
Good but a bit slow
By Charles on 08/30/2016
Another product, like Metsulfuron, that I use to remove cool season grasses from Bermuda, but which also works on sedges, and is similarly slow like Metsulfuron. Wait a week or two in spring and the poa will die off. Together with AmTide in the same bottle with surfactant, you can eradicate fescue and poa. When mixed with MSMA later in summer, it will really knock out dallisgrass, though you could just get rid of dallis with only MSMA. It comes with a little measuring spoon in the box to help you get the right amount per gallon of water.
0 of 2 people found this review helpful:
Didn't work on my lawn
By Jason on 04/18/2017
Didn't touch weeds in my Bermuda lawn. Been 2 1/2 weeks with ZERO effect on any variety. Read directions carefully. Mixed in back pack sprayer, with surfactant, and blue marking dye to see overlaps. Disappointing.
0 of 1 people found this review helpful:
By Donald on 05/09/2017
Product did not kill anything that it was suppose to... didn't even kill dandelion. Waste of money
So far Certainty Herbicide is working!
By Joe on 10/20/2017
I applied Certainty Herbicide to eliminate nutsedge from my lawn. It has been over two weeks since I sprayed. The weed has stopped growing. The leaves show some yellowing. Now I am waiting for the KILL!