Rated 3.3 out of 5 by 35
Rated 5.0 out of 5.0 by OhioJason It ABSOLUTELY works. Here is proof
The proof is in the pictures folks! Bought a new one gallon sprayer with the adjustable spray pattern tip (use the fan tip and walk a grid). I walked slow while swingin my arm like a pendulum. I sprayed the whole lawn and it ONLY killed the crab grass. O live in Ohio and have a mixture of fescue, kentucky blue, and rye grass which easily survived the treatment. Although drought like conditions have already caused some of my grass to go dormant (browned out and looks dead but isnt.)I put the product in the sprayer first, then filled with hot water, then added an ounce of laundry detergent (doesn't get sudsy). Then stir it with a paint stick to mix. Why? I found out that the professional lawn care guys use a pro grade surfactant ( we DIYers will have to resort to the laundry detergent or Johnson's baby shampoo). The surfactant reduces the surface tension of water/oils (the plant naturally produces) and allows the QUINCLORAC to penetrate. If you go with a product that doesn't have a large percentage of quinclorac in it you are wasting your money. 2 applications applied one right after the other on my front yard on a Tuesday and by Saturday I took the pictures shown. It didn't kill all of the crab grass, but I will do another application that should get the younger sprouting crab grass. It grows sooo fast in the heat! You really must treat the crab grass in the month of July. The further south you are, the earlier in July you will need to apply. You better hope you catch it before the seedlings sprout! Lesson learned....use a crab grass pre emergent in the spring EVERY year. Especially since my neighbors dont care about their lawn and do nothing but mow their grass...I mean weeds and clover.
July 30, 2016
Rated 1.0 out of 5.0 by Matt No Good
I live in Charlotte NC. My crab grass was going crazy and taking over my Fescue. After trying other products with no success I decided to try this product. I put this down with a pump sprayer with no rain within 24 hours and mixed exactly as directed. After a week went by with no sign of it attacking the crabgrass. I thought it was a slow kill. Well it has not been 4 weeks. I put this down the 3rd week of July when crabgrass was really growing. It has slowed the crabgrass some. And I am now getting yellow spots. Not the results I expected at all. I was hoping the crabgrass would be almost completely dead now and I could start raking up the dead grass getting ready for seed in Sept.
July 19, 2016
Rated 4.0 out of 5.0 by TJ My Go To Crabgrass Killer
This is a solid product that kills crabgrass. Established crabgrass is hard to kill. So, it is crucial to cover/soak the entire weed. Be sure not to dilute it. It works well at full strength. If the crabgrass is thick and well established, it may take a second treatment.
August 2, 2016
Rated 1.0 out of 5.0 by Jem Image Crabgrass Killer
Not impressed. The product turned the tips of the grass brown, but did not killed the weed.
August 16, 2016
Rated 5.0 out of 5.0 by jeff this stuff works
This is as product that does what it claims. After a couple of days, crabgrass is yellow and dying.
Not like the Ortho and spectracide products that are very marginal at best. Used it for last three years.
July 30, 2016
Rated 4.0 out of 5.0 by B99 Killed them
Need to wet the plants individually and they will die. Mild spray did not kill it.
May 3, 2016
Rated 4.0 out of 5.0 by TadT Good for nutgrass, not so good for crabgrass
You have to follow the instructions to a T, but it works...kinda. I had a huge problem with nutgrass and couldn't find anything to touch it. I tried this, but was disappointed. I decided later in the year to apply it again (since I had it) and it actually started to work. I waited about a week and reapplied it and now the nutgrass is turning brown and is dying off.
You have to mix it correctly, use it directly on the blades of the nutgrass and be patient. Some say to water you lawn lightly in about a day, but it rained so I can't speak to that, but maybe it was the difference it it working now, but not before. Nutgrass has nodules and the roots vine, so the product has to get to the nodule to kill it. Nothing else I've tried has worked at all.
I have applied it three times to the crabgrass and though it looks a bit dried out, it's still alive. I might try another product for it, but as hard as nutgrass is to get rid of, I'll use this for it.
June 27, 2015
Rated 3.0 out of 5.0 by RW Crabgrass killer
Used the product about a week ago. While it has killed some weeds, it isn't strong enough to kill crabgrass.
March 22, 2016