Rated 2.3 out of 5 by 40
Rated 1.0 out of 5.0 by JP Don't Waste Your Money
I've used Bayer products before with success and so I thought I'd give their Lawn Weed and Crabgrass Killer a try in my yard, along the roadside and spot weed killing in our field, mainly targeting broad leaf but with the occasional crab grass in my yard. I went through two 4 gal. pack pack sprayers of the stuff and actually used a slightly stronger dose of it along the roadside and in the field. It's been over two weeks now and nothing. Like another reviewer noted, I did see some dead dandelions, but aside from that I think I actually might have watered everything else. I've used Weed-B-Gon before for the same application and it worked fine so I don't think it's an "operator error" issue. I think this stuff just doesn't work. Lesson learned. Now what to do with what's left in the bottle?
July 25, 2016
Rated 4.0 out of 5.0 by vchir Good Product
Does really work in 3 days. Kills most of the weeds like chick weeds and does preserve the lawn. Lawn grass is very safe. So you can safely apply on weed within lawn based on my experience.
August 9, 2016
Rated 1.0 out of 5.0 by nscar Used to work... now it doesn't work at all
I used this a couple years ago to get rid of weeds and crabgrass and it worked great. This summer, I started getting the weeds and crabgrass again, so I bought 4 bottles to do my entire property, spent a few hours applying it as directed, and the weeds got even worse! I don't know if they changed their formula or it was a bad batch, but I wasted my money. Guess it's time to give Ortho a try
August 2, 2016
Rated 4.0 out of 5.0 by Offmyrocker Handy dandy man
It will kill crabgrass, the ready to spray. Spray your lawn when temps are around 75 to 80 degrees, soil should be damp, and grass dry, and no rain in sight for at least 24 hours. Do not mow lawn for at least 7 days. 2 days after mowing, repeat process a second time. It will brown some grass, that will recover. It killed about 95% of my crabgrass, now all I do is spot spray with the concentrate along curb, and near plants.
July 30, 2016
Rated 1.0 out of 5.0 by HPW Nozzle trigger leaks concentrate on hands when spraying
Leaks concentrate on hand when spraying. Also lots of air coming out when spraying which makes it tedious work. Needed to pour concentrate on crabgrass.
August 4, 2016
Rated 1.0 out of 5.0 by Wisconsinbrew Bayer Advanced Lawn Weed & Crabgrasss Killer 40 oz concentrate
Purchased the 40 oz bonus size and applied to my 2 acre lawn here in Wisconsin. My lawn is a midwest blend comprised of 70% KB and Fescue. Bayer website advises to apply @ 2 1/2 oz of chemical per gallon of water for KB lawns. This mixture ratio conflicts with the product label which advises a mixture ratio of 3.2 ounces per gallon of water. I elected to use @ 2 1/2 ounces per gallon of water.
Applied late morning with temps at 65 F. to actively growing weeds. 24 hours later and it appears the application had no effect on the weeds in my lawn.
Will try a stronger 4 ounce to 1 gallon of water ratio and report back in 2 weeks.
May 9, 2016
Rated 2.0 out of 5.0 by Beach004 Only if you don't have crabgrass
I'm in central North Carolina, an acre of nominally fescue. I am a retired chemist. I made up the solution precisely as directed, sprayed once, then again two weeks later. The spray killed a lot of miscellaneous weeds; but it had little or no effect on crabgrass, which is the weed for which I purchased it. So if you have other weeds, this might be an effective and economical solution for you; for crabgrass--I'll wait till spring and try to properly time a pre-emergent.
July 3, 2016
Rated 2.0 out of 5.0 by Bman Does not kill crabgrass
Sprayed twice in 10 days. Very little rain and hot here. Crabgrass is thriving. I think it is actually watering the crabgrass.
July 6, 2016