BioAdvanced All-in-One Weed & Crabgrass Killer, Ready-To-Spray, 32 FOZ

The first time I used it I must of used i it wrong. It didn’t really work. But then I noticed that some crabgrass and clover had died. But after trying it again and adding surfactant and blue dye. It worked wonders. I killed all the weeds and I mean everything. Especially all those clovers and crabgrass. I noticed a difference the very next day. I did notice though. Put the blue dye in so u can see if it’s actually pulling the weed killer and not just water from your hose. Because I thought well maybe if I just turned the lever a few ways I can spot treat and use less of the product. NOPE!! Have to full blast open that lever. Cause I can actually see the water stream turn blue or clear as I turn on the lever. One thing to note. It is not a preventer. So it will kill the existing sprouting crabgrass but if there are still seeds in the soil more will sprout.

Didn't kill the grass

Kills just about all weeds but for Oxalis. I've treated twice and the Oxalis is still there, but in reduced numbers. If it eradicated the Oxalis I would definitely give 5 stars. Even Scott's Triple Action Weed and Feed didn't get rid of the Oxalis, so it must be one tough weed to eliminate. I definitely recommend it for all other weeds, or maybe multiple applications may eventually do the trick? I want to reseed the bare patches, so I don't want to apply this any more times so that I can seed soon. Of the two brands I bought, this one seemed most effective.

This product killed EVERYTHING but the CRABGRASS! Actually, it has intensified the growth of the crabgrass. In April I paid over $400 for a section of Zoysa Sod. Well, this product has successfully damaged that, amongst the rest of my yard, in less than 6 days. The pics are from 7/5/24 before treatment & 7/11/24 since treatment. Do NOT buy this product!

Product would not dispense from bottle via the hose attachment. I contacted company, got a refund and tried again. Definitely killed large areas of crabgrass so left with lots of large brown areas on lawn. But within several weeks, lawn covered in clover. First time in years I used chemical treatment on lawn. Probably last time.

Inexpensive effective killed crab grass overnight of course now remember they just don't go away you have to pull them out dead an all, did not kill the lawn

Good product

For this, and all other herbicides - you need to use it at the right time of the season to get good effects. It will kill crabgrass and many broad leaf weeds but you will need multiple applications if you don't pick the right time of year. Check your local university extension and do some reading online to find out when would be best to apply for your area and the weeds you have. Also, make sure you apply properly. You need to go over your area twice, going perpendicular to the first pass on the second. After half of the area you're doing, stop. Check the bottle. You should have used 1/4th of it. Speed up or slow down to correct if need be. When you've done the whole area the first time you'll have 1/2 of the bottle left. Finish applying but go perpendicular to the first pass - example, if you went north to south first, go east to west the second time. Doing it this way will give you a chance to hit any spots you missed the first time. True, the weeds you miss on one pass will only get a "half dose" the second time around, but it's better than nothing. Also make sure to apply at the right temps, and not too soon after or before rain. Read the directions carefully and apply correctly and at the right time and you will get good results.