Compare-N-Save Concentrate Glyphosate Concentrate Grass & Weed Killer Herbicide, 32-Ounce

Been wasting my money with other products that are too watered down and only turn weeds brown and they come back. THIS product KILLS whatever you spray it on. I have a new asphalt driveway and use a paint brush to apply to the edges so grass won't grow into it. This product does what it claims. Not as quick but it's completely killing the offense items!

Working great on bamboo. I chopped down all the full grown bamboo and waited for new green shoots to emerge about two feet tall with leaves unfurled. Hit it with a mix of the compare and save weed and grass killer, some dish soap to stick to the waxy leaves and some water in a gallon pump sprayer. It takes about one week to start seeing the tips of the leaves to turn yellow. Then almost by week 4 the bamboo is dead. I bought a small bottle at first to test it and now I purchased the 2.5 gallon jug because killing bamboo is a long process…

I was surprised to see how slow this product worked. Most other nonselective herbicides I have used before started showing effectiveness within a couple of days. This stuff took a week to show any activity. It does do a good job of killing whatever you spray, and this concentrate is a very good value.

Use it every year. I can control the mix; takes a week to work in full - and it works well. Careful around plants you don't want to kill. I use a two gallon sprayer; goes a long way. Always wear long pants, long sleeves, rubber gloves and glasses and shower after. Not for use by kds. Careful about the wind - this stuff will kill what it touches; soaking is not needed.

This is easy to mix and easy to use. If you know how to use it the results are fantastic. This is a much higher concentration than the Round brand you find Up at garden centers. (See what I did there? 😎) Understanding glyphosate is the only way to make this work. It hinders the water uptake from plants and it is foliar so it must be absorbed through leaves. If whatever you want gone is not actively growing—this won’t work. If whatever you want is drought-stressed—this will not work. Example: I have an area of Bermuda in my lawn that grows the neighbor’s Dallisgrass. I hit this in two shifts last year and will tackle another area this year. Shift 1: The Bermuda is about to go dormant and turn brown. Perfect. Because this is a foliar product I can blanket spray on dormant Bermuda with no issue. It will kill anything else growing that has green leaves. Like Dallisgrass. Shift 2: Dallisgrass comes out of dormancy weeks before Bermuda to attempt and shade the grass to compete for nutrients. Once it wakes up I will hit it again even harder with this stuff because it will be more actively growing. At this point if the Dallisgrass survives, it has earned the right to do so. The best way to use glyphosate is to water regularly, fertilize regularly, then hit the leaves of what you want gone with this herbicide. It takes about a week to fully eradicate and sometimes 2 applications because it has to be absorbed through the leaves. You’ll notice results within a few hours but that’s just drought stress. In 4-6 days it will be a bare patch. I highly recommend this product.

32 ounces, 41% Glyphosate concentrate generic Round-Up. For 15 bucks. Need I say more? OK I will... This stuff works VERY well. To test it out, I dumped around 1 1/2 ounces of this product into a 32 ounce spray bottle of water, shook it up, and went to town on some creeper vines and weeds that were taking over a corner of my yard. The effect was not apparent overnight — and I initially thought perhaps I didn't make it "strong" enough — but within a few days or so everything I sprayed was brown and dead! I read online that Glyphosate alone will take longer to start working; Round-Up ready-to-use formulas tend to have other active ingredients that facilitate a "quick death". Encouraged by this experiment, I decided to finally rid myself of two extremely stubborn Brazillian Pepper trees in my yard. I had cut them down to stumps before, and despite having no leaves, they both came back with a vengeance. This time, I cut them both down to ground level (again...), drilled some nice sized holes in both stumps, and poured this product into each hole undiluted. I then covered the holes with tape to prevent the rain from diluting it. It's been a few weeks now, and neither stump is showing signs of new growth and I'm confident that there is no way they could survive this treatment. The fact that it is in such a high concentration is great too. An equivalent concentration and size bottle of Round-Up (Round-Up super concentrate, 50.2% Glyphosate) will cost you $44.99 here on Amazon. This is nearly as powerful, and for 1/3 of the price! Dilutes well to kill leafy foliage, and is powerful enough to handle stubborn stumps (as I said, don't simply paint the stump with it, drill some holes and fill them). Very pleased with the results and will be buying more when needed!

I am retired landscape contractor, and have used round up concentrate of this material in the tens of gallons, and understand the hows and whys of the glyphosate usage. I used this as per required amounts plus a health extra amount, this stuff failed COMPLETELY........ THIS STUFF IS GARBAGE, no kills worth mentioning....... I did get some kills the first time i used it, but I also had some lawn weed killer that i mixed 6 ounces in with it, just to get rid of it... The next three times I used it A BIG FAT NOTHING died..... So in my Professional Opinion, SKIP THIS GARBAGE…......

I bought this seven years ago, and yes it lasted me for 7 years. Seven years of complete satisfaction. I use it for weeds between and around the pavement and weeds in the backyard. I never had to reapply a second dose in any season. No complaints whatsoever. It finally ran out. I bought it for $8.99 in 2017. I guess inflation happened.

Effective, but I have found thicker-blade grass to be quite resistant to this, needing 2-3 daily applications and about a week before seeing things die off. It can kill off larger plants with larger stalks and leaves, but these can take 3-4 applications and a couple weeks. Thin grasses respond within 36+ hours to a single application. But overall, yes, it does get the job done. Everything eventually withers away... you just need to be aware that not everything withers away at the same time or with the same speed.