Prime Source Meso 4SC Select Herbicide
Customer Reviews

Rating Snapshot

4.2 of 5 stars (34)
4.2 out of 5 stars
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73 of 76 people found this review helpful:

Worked just like Tenacity, and I've used both
5 of 5 stars
By Bill in Vincentown, NJ on 09/13/2019

I used genuine Tenacity 2 years ago and I got the same great results with this product. Here are a few tips: My target weeds were bentgrass and green kyllinga in a tall fescue lawn in New Jersey. …

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45 of 45 people found this review helpful:

Same Results as Tenacity
5 of 5 stars
By Jay in VIENNA on 09/06/2019

I have used Tenacity in the past and was hesitant to try the generic. It looks and performs the same.

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42 of 42 people found this review helpful:

Works Marvelously
5 of 5 stars
By Laura in Evansville, Wisconsin on 09/06/2019

I used a surfactant, blue dye, and this generic tenacity on my post-emergent crabgrass, clover, nutsedge, dandelions, creeping charlie, and other random weeds. Within 2 weeks the weeds were white and …

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42 of 42 people found this review helpful:

Bentgrass murderer
4 of 5 stars
By Joe in Plymouth on 06/07/2019

Have bentgrass in your KBG? This is the stuff you want. Does a good job at turning white (phytotoxicity) and then killing it (necrotic). It took a couple apps to get all of the plants/clumps. T…

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22 of 22 people found this review helpful:

Good stuff
4 of 5 stars
By Terry in Anderson, IN on 09/06/2019

I applied product about 9 days ago and the weeds are turning white as expected. I finally found something that will kill the Nimberwill. I wish it wasn't so expensive.

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13 of 14 people found this review helpful:

Dont waste your money on round up, buy meso 4sc
5 of 5 stars
By Dan in St. Louis missouri on 04/26/2020

Everybody hates wasting money and seeing as the generic version of tenacity (meso 4sc) is still expensive, well it made me hesitant to buy it. I read good reviews amongst a few not so happy folks but …

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13 of 14 people found this review helpful:

Fantastic Results
5 of 5 stars
By Jeff in Mchenry, md on 09/13/2019

Results shown on poa Annua in 7 days. Be careful not to overspray

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11 of 11 people found this review helpful:

Good stuff
5 of 5 stars
By Stevo in Millmont on 10/07/2019

I used Dawn dish soap at 1 oz per 4 gal's. as the surfactant with the directed amount of Meso in my 25 gal sprayer. It works great. I applied it a second time 2 weeks after the first. Watering it in s…

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9 of 9 people found this review helpful:

Great product! Time is your friend.
5 of 5 stars
By Erik in Upper Marlboro, MD on 09/13/2019

I applied this product as directed to my lawn about two weeks before I aerated and over seeded for the fall. After the first week I saw some whitening of the broadleaf across my yard. Take not, this …

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7 of 11 people found this review helpful:

Does not work on Creeping Charlie
4 of 5 stars
By Joe in Milwaukee, WI on 09/06/2019

This stuff works on quack grass and other grasses really well. It also works fairly well on clover. But where it totally fails is creeping charlie. Even when I coat it heavily (or lightly) it does alm…

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6 of 6 people found this review helpful:

Kills the Crabgrass
5 of 5 stars
By Randy in Salisbury, NC on 09/06/2019

Received quickly. Works as expected to kill the crabgrass that took over my yard. Sprayed as directed with a 1 gallon sprayer(used 2-3 tanks to complete entire yard). I mainly just sprayed on the c…

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5 of 6 people found this review helpful:

Not Happy
2 of 5 stars
By Howard in Chesterfield, VA on 10/17/2019

This product had some effect on crab grass but other weeds were not killed off as advertised. I applied it with a tank sprayer with surfactant and blue dye. It was mixed according to directions and …

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5 of 12 people found this review helpful:

As of now it looks like i wasted my money
2 of 5 stars
By Dan in Arnold, missouri on 10/19/2019

First off i used a groundskeeper II dethatching rake over my entire front lawn. Getting a having thatch removed before application. I mixed this meso 4sc after reading it provided the same results as …

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5 of 5 people found this review helpful:

Meso 45c select
4 of 5 stars
By Phil in Overland Park is on 09/13/2019

One week and it is killing all of the nutsage very well, having better results than I have hoped for. Would use it again.

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4 of 4 people found this review helpful:

Great Product
5 of 5 stars
By Bryant in ALEXANDRIA, MN on 09/06/2019

I wanted to take my 'good' lawn to the next level, you don't realize how many weeds and non desirable grasses are in a nice looking lawn until they all turn white! This product is fantastic, killing a…

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3 of 6 people found this review helpful:

Bentgrass in lawn
1 of 5 stars
By Rickey in WILLIAMSPORT IN. on 10/25/2019

Applied as directed . It did absolutely nothing . Waited ten days , doubled dosage , nothing . I still have some left will try again in spring . If I get no result I will try Tenacity . I have to do …

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3 of 10 people found this review helpful:

Doesn't work!!!
1 of 5 stars
By Peter in South Orange, no on 10/18/2019

Don't waste your time or money on this garbage! Used it as instructed. Was worse then using a Home Depot product.

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3 of 4 people found this review helpful:

It's Working
4 of 5 stars
By Richard in Parsons, Kansas on 09/13/2019

It's been down for about ten days. As of now I'm happy with it. It is clear that many weeds are becoming white.

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3 of 3 people found this review helpful:

Works Great on Bent Grass!!
5 of 5 stars
By John in Macomb on 09/13/2019

I had two small areas (4'x6') of bent grass invading my Kentucky blue grass lawn. Following the instructions and using a surfactant, I applied two applications of this product and the Bent Grass w…

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3 of 3 people found this review helpful:

Great Results
4 of 5 stars
By Aaron in Loveland, CO on 09/13/2019

I had pretty good results. You definitely need a second application in which it describes on the label.

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3 of 3 people found this review helpful:

Very impressive
5 of 5 stars
By Steve in Newark on 10/04/2019

I tried this after a few video recommendations to use Tenacity. I was amazed at how effective this was on weeds in my yard. I have tried several brands from the big box stores with poor results. Th…

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2 of 5 people found this review helpful:

Generic tenacity
2 of 5 stars
By Cantin in Enfield CT on 10/20/2019

Killed my grass... very disappointed... followed directions

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2 of 2 people found this review helpful:

Works
5 of 5 stars
By Kyle in Butler on 10/29/2019

So far I have just used this product for spot post emergent but seems to work great. Cant wait for spring for a full yard application.

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2 of 2 people found this review helpful:

Meso 4SC
5 of 5 stars
By Leonard in Middletown DE on 04/17/2020

This is an excellent product that I began using last season. Effective and versatile since it works as both a pre and post emergent. Also has the additional benefit of allowing use while seeding. …

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1 of 1 people found this review helpful:

Arrived promptly
5 of 5 stars
By Zepp in U.S. Northeast on 05/29/2020

Arrived promptly. I applied it to my lawn -- which was more than half creeping charlie and other broad leaf weeds, and crabgrass, which is gradually turning as white as my head of hair. Seems a slow…

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1 of 2 people found this review helpful:

Works as Described
5 of 5 stars
By Dan in Sacramento, CA on 09/11/2020

I was a little cautious as there are so many products and claims but this one works as described. After application crabgrass turned white and dead in a week. The amount of herbicide used is minima…

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1 of 1 people found this review helpful:

Good Deal
5 of 5 stars
By Darold in Rescue on 08/28/2020

Have been using some Tenacity, this is a good savings for same chemical.

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1 of 3 people found this review helpful:

Don't buy
1 of 5 stars
By Juan in Brick nj on 08/24/2020

I bought it by mistake l decided to give a try and what a big mistake it is killing my mix tall fescue ray grass And Kentucky blue

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1 of 1 people found this review helpful:

Works great on creeping bentgrass and many other weeds
5 of 5 stars
By Dan in north riverside, Illinois on 08/18/2020

I used it in combination with a surfactant to address creeping bentgrass which has been extremely invasive in my lawn over the past two summers in the Chicagoland area. Two weeks after treatment the …

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1 of 1 people found this review helpful:

This is GRReat for killing off Nimble-will
5 of 5 stars
By Mike in Pgh, PA on 07/25/2020

took a while to find out what this weedy grass actually was called, but our yard was had a lot of it when we moved in. finally found this from DoMyOwn, and with only a fraction of an ounce per gallon…

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