BioAdvanced 32OZ Weed/CRBGRS Killer - Kills Weeds & Crabgrass, Covers 12400 Sq Ft - Spray Form

Seems to have done to trick on killing crabb grass and other weeds. Effects take about 5 days to see with the slight yellowing of the grasss as it works its way to the root. I have cut my grass and there seems to be much less crabb grass and weeds growing back, hasn’t killed every weed but most of them and I have plenty still left in the bottle

I bought this in July last year and thought I'd wait till this year to leave the review. I had a fair amount of creeping clover, loads of patches of crab grass and a few other odd weeds. This took a couple of weeks to arrive, however it did come from America, so be prepared for that. However it worked amazingly, a very small dose by comparison to other week killers you woukd use in the UK, after the first week the flowers on the clover has all died off, the leaves had withered and the thick vines were starting to shrivel up, the crabgrass looks half dead, as if it hasn't seen water for weeks, so I gave it a second going over with the weed killer, a week later literally all of the crabgrass had withered away and was dead, the clover was non existent as we're the other odd weeds, I was left with patchy grass where the crabgrass and weeds had been killed. All I needed to do was cut the grass very short, take the lawn rake over it to get all the dead stuff out and then over seed and water it in. Grass looked excellent after a month or so. However I thought I'd wait till spring this year to see if loads of crabgrass popped back up, and I am happy to say I had 3 patches, each about the size of a tea plate. So this has been great success.

Crab grass has been the scourge of my lawn for years. I tried keeping the lawn super short and pulling it out, but nothing short of tearing up whole sections of lawn and reseeding seemed to work, until now. This does kill, or at least badly yellow, crab grass on a first application. It’s not systemic so it looks like it will need a few applications to get it all, but I can’t tell you how much I enjoy watching this weed die off. A few words of caution, the instructions are in imperial old school measures, so it’s easy to miscalculate exactly how much weed killer to add to a quart per furlong but over dosing doesn’t seem to harm normal grass too much. The delivery is also impossibly long. After a couple of weeks I checked what was happening and the eta on a new purchase was quicker than my old order.

The bane of my life was crabweed - this year it has gone. This stuff is not cheap and neither was my time spent digging it up. Now I just spray and get on with other stuff. Have recommended it to friends

Does not work killing ordinary or extraordinary lawn weeds, let alone Crabgrass. I applied the correct dosage for my first treatment, sprayed my lawn and waited the recommended couple of weeks, and nothing, weeds happily growing, Crab grass laughing away at me. Second treatment I effectively upped the dosage by a factor of 5 times the recommended dosage and carried on to waste the next 30 minutes spraying my lawn again. 3 weeks later and absolutely nothing has happened. I only bought this product as it was a supposedly targeted Crab grass killer so im not overly bothered that it does not common kill weeds like clover etc because there are Weedol products that do, but for it to do absolutely nothing to Crab Grass at this price is taking the proverbial. If you have weeds of any sort, then avoid this product, it likely might kill something because it smells like it should, but im yet to grow that thing on my lawn.

Excellent quality and value for the money, no issues experienced delivery was spot on would recommend no problem Really pleased

Oh yes it works!

Have been happy with the results. Definitely killing the crab grass. Doing what it says on the tin.

Plumbing work tore up our backyard, and dock weed took over. Both curly leaved and broad leaved. Big, huge Jurassic looking bastards just trying to flower and take over the entire neighborhood, once they dominated and suppressed all my pretty plants. I asked my father what I could do? Constantly cutting them down didn't help, I wasn't about to dig up 500 plants with taproots 5 feet long, and the brush killer I have for poison ivy and trees of heaven wasn't doing anything. Dad suggested this stuff. I mixed some up in a spray bottle and tested it on a broad leaf dock in the front yard that was competing with my hostas. I carefully sprayed the leaves of the weed, making sure to saturate them, and within two to three weeks, the weed was completely gone. So I attacked the jungle in the back. Because some of the weeds in the back are ENORMOUS it's taking a few applications, and may take all summer to kill, BUT THEY ARE DYING. And that's all I care about. Trees of heaven and dock weed can burn. This stuff at least gets the dock.

Normally crabgrass laughs at most broadleaf killers. If you want to kill it you have to choose a product that says expressly "with crabgrass killer." We had a long thick strip of crabgrass that arrived this year. When I say long and thick it was a foot wide and close to 25 feet long. We've always had a problem with the back yard in our rented home, but this was the most concentrated as I have ever seen it. The product, like all weed killers does not smell good, and the smell lingers on the lawn for several days. I received the product June 10 and used it at a slightly stronger mix in my hose end sprayer. This is what it looks like on June 13. I am doing the happy dance!

Can take a couple of months, a couple of applications, and several weeks of dry weather to work but it worked.

I use this in a pump sprayer and it works well to kill dandelions, clover and crab grass. Dandelions start to shrivel in a couple of hours and rot away over the following days

Worked on 1/2 the weeds. Still have crabgrass. 🫣 the crabgrass turned purple on the tips but never died. Mowed and now it looks like i didn't do a thing. Did take out most of the clover and some other waxy broad leaves weeds.