Ortho GroundClear Year Long Vegetation Killer2 Concentrate - Weed Killer Concentrate, Kills and Prevents Weeds Up to 1 Year, 1 gal.

Used tank sprayer, mix by directions (24oz per 1 gal water). Sprayed brick patio with lots of weeds/grass growing through. Seeing results in less than 12 hours. Final judgement is over next 12+ months. There is a residue left on bricks that I am wait for next rain to wash off. A good rain washed all residue off the bricks. Will update review with any additional pertinent information.

I originally updated this product. I originally gave it two stars. It's been a month since I applied it. I gave it a terrible review one week after applied. But now it's been a month and I changed it to five stars. This product does exactly like it says it does. It clears the ground completely to the dirt. It took longer to do as it was supposed to. Then it says it takes. But this product is well worth the money. It did exactly like advertised. Hope my review. I'm getting ready to order another gallon. Fantastic product!.

I bought this to mix in my sprayer because it was cheaper than roundup or spectracide, which I’ve used with success. but when I peeled back the label to read the instructions, I was shocked to learn that it takes 24 oz for a gallon. The others usually called for about 4 oz. I also bought this hoping that the claim that it keeps weeds away for a year is true. We’ll see. I just sprayed weeds in my front yard and back. After about half an hour I see the weeds are wilted and turning brown. If they come back in less than a year, I won’t be buying this again. It’s too expensive because of the dilution rate.

Does the trick for sure. Just be very cautious of your pets and strays of any kind.

A little slow to work, but it does work. I’ve used it for years.

“Very effective and easy to use. It quickly killed the weeds in my yard and helped keep them from coming back. Highly recommend

Works great! Cheaper (with free Prime shipping) than you can buy at any store.

Last year I used this & I had great success, it worked as advertised. This spring I spent a lot of money (3X) it is not working and now I have aprox. $200.00 worth of product that doesn't work. Its been two weeks and weeds aren't dead or dying. I am very disappointed and frankly pissed off I wasted so much money.