Customer Reviews for Certainty Herbicide - 1.25 oz.

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.

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5 of 12 people found this review helpful

Product did not kill anything that it was suppose to... didn't even kill dandelion. Waste of money

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5 of 18 people found this review helpful

I have a couple patches of quackgrass and this was recommended on multiple websites. From reviews, the quackgrass should have started browning in a week. It has not, in fact it appears to be flourishing. I am going to give the second treatment in a few weeks. Maybe I will see something after that.

  Expert response:
You may notice signs of the quackgrass dying (discoloration-yellowing or browning) within 2-3 weeks after you have applied Certainty but it is normal not to see anything for at least a month. Per the product label, you can make an additional application 4 or more weeks after the initial application as needed. Best results are obtained when target weeds are actively growing & not disturbed by mowing for at least 2 days before and 2 days after application. Warm, moist conditions following application will accelerate activity; cold, dry conditions will delay activity. Drought stressed weeds are less susceptible.

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5 of 5 people found this review helpful

I live in FL and have all the typical southern weeds. I applied Certainty twice. It rained pretty good after the initial application so I waited a week and reapplied. I haven't seen 1 weed die but it did however stunt the growth on my bahia yard everywhere I sprayed the product. Now it seems I have more weeds than before. I wish I could get my money back as it's quite expensive.

  Expert response:
We apologize results were not as expected, it sounds like there was just not enough time allowed following the application to see results. You may notice signs of the weeds (discoloration-yellowing or browning) within 2-3 weeks after you have applied Certainty but it is normal not to see anything for at least a month. Per the product label, you can make an additional application 4 or more weeks after the initial application as needed but should not apply after only 1 week.

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