BAYER CROP SCIENCE 704330A DuraZone Weed & Grass Killer 32Oz Conc Durazn W and G Kil, 32-Ounce, Concentrate

I use this product once per year on my stone landscaped yard in Colorado which has many undeveloped (and weedy) lots nearby. I spray it on the road base sections in late April before the weeds begin appearing and it does an excellent job of preventing weeds from emerging all spring and summer. Sometimes a few will pop up, but much easier to a pull a few weeds than deal with the whole area being full of weeds (which does happen if I do not spray). Last spring I also sprayed it on decorative stone areas (2-inch stones) and it worked well there too. In previous years I just picked any weeds that popped up in this area, but during a pretty bad weed year, I gave up and sprayed the weeds already present (about 4 inches tall) and it killed them and prevented more from coming up. I have been using this stuff for years. Works great!!

I have used a number of weed and grass killer products over the years. The BioAdvanced 704330A DuraZone Weed & Grass Killer, is definitely better than most. It takes a little longer to work than some of (same day) types but it last a lot longer. I am not back 2 weeks later spraying new weeds in the same area. I formerly purchased it locally but my local stores stopped including it with their other (Bayer) BioAdvanced products. Being my favorite, I searched for it on line and ordered several bottles. I will offer a tip: Do not spray this right before a rain or on a windy day. If you do it will damage adjacent grass and plants that you do not want to kill. Try it and you will be convinced.

A friend recommended this to me 2 years ago. I sprayed our gravel driveway with it in 2018 and 2019. It was the first product ever that when I sprayed it, the weeds did not come back at all that season. Everything else I had tried in the past required me to spray 2 or 3 times each season and I still had trouble with spotty weeds. This year there are hardly any weeds at all in the entire driveway. I believe this product has carried over after using for a couple years and I only had to do spot spraying. I would highly recommend this product to get rid of weeds where you do not way to plant in the future!!

The product needs to be diluted with water prior to application which can be messy. As advertised it killed weeds (well, any living plant) quickly. When applying I tried hard not to get the grass surrounding the patio, so I likely applied less product along the edges. I applied the product in early July, by late October I started seeing weeds reappearing on the outer edges of my patio but none so far in the middle of the flagstone patio or on the driveway. Overall, I am very happy with it.

This is easy to use, works as advertised, kills weeds, and keeps them from coming back. My only caution, is that it will kill all vegetation, including good plants, so be careful when applying.

I have used various other brands in the past, but so far in 3 years of using this brand it has worked. I routinely spray in the Fall in areas that have issues with weeds taking over by early Spring. I spray this brand of weed killer in those areas and indeed it does last for at least 6 months advertised with little to no weeds evident. I think it's worth the higher cost for avoiding the hassle of pulling garbage can sized amounts of weeds by hand.

This stuff works great. I initially bought a batch of it with the sprayer, but had since run out, so I bought the more economical refill. We had a lot of weeds/crab grass growing in our back yard in between patio tiles. Seemed to be getting worse and worse and pulling them only made it pretty for a short time. I went around and sprayed this directly on the whole line in between the tiles (to catch future weeds) and it's been mostly weed free for a few months already. I say mostly because unless I picked up the tiles, I can't possibly get every weed. Be careful for killing weeds in grass though, this kills grass as well and I have a big dead spot now trying to get rid of a really nasty weed.

For years I've had an infestation of scurvy weed in my flower beds. It's a long leafed blade weed with a tiny blue flower which is present in early morning. Round-up...AgraLawn...no. This product works with a residual of six month, so the label says. Mix in a 1 gallon tank sprayer and most importantly, add a tsp. of surfactant like Turbo or Spreader Sticker. That type of agent assures that the Durozone sticks to the leaves.