Literally doubled in price

By Stephen in Clinton, NJ on 07/30/2025

Works everytime, as long as you mix properly. Kills it all except the grass you want to keep.

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Expensive but it work great

By Steve in Louisville, KY on 06/20/2025

This product wipes out a vast amount broad leaf weeds and even tackles nutsedge. Yes, this is expensive. But for spot applications it works better than than other weed killers I’ve used.

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The Terminator

By Dc in Myrtle Beach, South Carolina on 05/09/2025

Tried many; this is the best. In only a week, my weeds look like they’ve been hit by a nuclear blast ☢️, and my Bermuda lawn stayed perfectly green!

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It worked very well

By Chuck in Farmington, Ca. on 11/15/2024

I hadn't identified what weeds I had in my lawn so I tried this produce to see if I could have success. It did a great job on clearing the weeds. It worked pretty well on the nutsedge weeds also. I us…

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Crab Grass Wiped out!

By Christine in New Miford, NJ on 09/06/2024

Product is excellent for getting rid of that crabby grass. One application and total brown out within a week. Worth the wait!

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Q4 Herbicide

By Harry in Norman, OK on 08/16/2024

Works great on getting rid of crabgrass, nutsedge, and other types of weeds in your yard.

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Works!

By My in Ri on 07/21/2024

Crabgrass started to yellow in 2 days and was dead in about 19.

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Punchy

By Tcreed in Nolensville, TN on 06/05/2024

This stuff pretty much will knock out any grassy (not all grassy) or broadleaf weeds you have, while protecting your turf. Powerful combo of ingredients. I use a surfactant when I apply and 1 applicat…

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Works on most weeds.

By Larry in Winchester tn on 05/31/2024

Worked really well on clovers and dandelions. Only a partial kill on wild violet.

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Happy With First Application

By Michael in Tyler, TX on 04/19/2024

I used Q4 about a month ago and I’ve seen improvement. A few weeds slipped through but I will hit them with a second application in a few weeks and see if that works. So far I’m happy with the pro…

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Q4 Plus

By Trav in Central NE on 09/29/2023

Stuff works well. Don't mix it on the weak side or it will make it look ineffective. Does a good job in cool season KBG at not hurting the lawn but wiping out crabgrass, dandelions etc. Will be less e…

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q4 plus turf herbicide

By Joyce in ontario california on 09/22/2023

yes,the q4 killed/burnt d crab grass which is on half of my lawn at this point..but how do I fix the yellowness of the killed/burnt spots.lawn doesn't look great with the look was scared of spraying t…

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Q4 Plus works!!

By Arnold in Knoxville, TN on 09/22/2023

I had some crabgrass around my curb. I mixed some Q4 1:4 with a surfactant and it knocked out the crabgrass!

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Q4 Plus Turf Herbicide review

By Jeff in Colorado, Springs on 08/08/2023

Q4 Plus works great. I had various weeds, dandelions, purslane, yellow nutsedge, and clover on a couple of my properties. After using Q4, the weeds were dying within a few days. I use this stuff 2 tim…

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Excellent stuff

By Ken in Lexington on 06/23/2023

Used this a week ago and already killed off thistle and crab grass that inundated my Bermuda grass. Used 2oz per gallon of H2O and worked AWESOME! Did not cut grass 2 days prior and waited 24 hours t…

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Worked 100%

By Connie in Green Bay Wi on 06/09/2023

This was the only product that worked to kill the creeping Charlie in my yard .

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Weeds galore

By Reed in Arkansas on 05/12/2023

Make sure you follow the directions not really clear on how much product to water I need to have a YouTube channel for all people instead of reading the directions because it's a little confusing but …

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I would use this again

By Stephen in Orange, Ca on 04/28/2023

If you knew me, you would know I expect things to work immediately. Now this product does work but not immediately. So be patient and it will work and it won't kill off too much of your grass. It does…

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Q4

By Ellen in Northeast Texas on 10/07/2022

We live on a lake with a large front and back yard. Strange unidentified grasses have invaded our Bermuda grass and broad leaf week killer was not effective. This product did exactly what the label sa…

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Awesome product

By Geovonni in Euless tx on 10/03/2022

I received very fast and without inconvenient, the product was sealed just how described on the website, thank you

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Effective against VA Button weed

By Jim in Lynchburg, VA on 09/16/2022

I had large patches of Virginia button weed and some crab grass, mixed with some carpet weed. I was really happy with the treatment on the Virginia Buttonweed which was my primary problem. It was so…

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Q4 plus turf Herbicide

By Smith in Eatonton on 09/14/2022

I use this product on crab grass and jungle rice grass and it worked

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Don't Buy it

By Firas in Chattanooga TN on 09/09/2022

Not kidding any weed I tried for the 3rd times still nothing

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Works great!

By Jacob in Oak Ridge, TN on 09/02/2022

Had a mix of Crabgrass, spurge, and some broadleaf weeds. It killed them all! Great product

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good bye crabgrass

By Michael in Connersville, in on 08/28/2022

the Q4 works great seen crabgrass dying within 3 days, while my regular grass keep looking fine. and some of the crab was good size patches. did this in august in indiana.

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Kills lawn

By Jerry in Montague, MI on 08/27/2022

Killed everything except my target weed! Will never us again.

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Not impressed

By Tom in Brownstown, Mi on 08/26/2022

Applied as directed, 3 + weeks later seeing no sign of weeds dying

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isappointed

By Don in Concord, NC on 08/12/2022

My first application was Mid-July and sprayed over the entire (4000 sq t) yard. After a couple of weeks, minimal change was seen and, as well, there was new crabgrass growth. I re-ordered and this ti…

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OK results

By Zach in Rochester, MN on 07/08/2022

Easy to use and spray. Saw results on the broad leaf weeds very quickly. Killed very little crabgrass unfortunately, which was the main reason for buying this product. Overall was a little disappointe…

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Works well as post-emergent to control crabgrass

By Jeff in Chapel Hill, NC on 07/01/2022

Bought this to control crabgrass in my tall fescue lawn. Unfortunately, I didn't put down a pre-emergent this year, so I've had crabgrass popping up all over the place. Followed the directions for s…

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