
Ratings & Reviews for BioAdvanced Extreme Crabgrass Killer 32 -fl oz Hose end sprayer Pre-Emergent Lawn Weed Killer
Ratings may include incentivized customer reviews.
What Customers Are Saying
The Bayer Extreme Crabgrass Killer appears to be an effective product for controlling crabgrass and other weeds in lawns. It effectively kills crabgrass and weeds like Japanese stiltgrass, with most customers seeing results within 1-2 weeks of application. The product is easy to apply with a ready-to-spray hose attachment. While some customers saw immediate results, others noted it takes time for the crabgrass to fully die off, and reapplication may be needed for mature or heavy infestations. The product does not harm the surrounding grass and is safe to use around the home. Overall, the product seems to be a reliable and effective solution for controlling crabgrass, as long as the instructions are followed closely.
Customer review summary generated by AI, including incentivized reviews.Good spray
Would Recommend[This review was collected as part of a promotion.] I received a bottle of BioAdvanced- Extreme Crabgrass Killer Ready To Spray Size :32oz, from TryIt, and this has worked great. I like that I can just hook it up and spray, no mixing involved! Sprayed the crabgrass and the next day it was dead! Good stuff! I like that it goes on the way to the root of the crabgrass to kill it.
From BioAdvanced
Works well
Would Recommend[This review was collected as part of a promotion.] This was an easy to use product. I hooked it up to my outside water hose. Once I did that, all I had to do was spray it on the grass. You have certain directions you need to follow such as doing it under a certain temperature, not mowing for 24 hours or waiting until your lawn isn’t wet. It really worked to kill the crabgrass.
From BioAdvanced
Wonderful! Thank you for your review of BioAdvanced Extreme Crabgrass Killer! -Madison
Killed more than crabgrass
Would Not Recommend[This review was collected as part of a promotion.] I ordered this to clean up my yard as the crab grass was growing rampant! After use, the intended grass did die, but it also killed the grass around the crab grass in a diameter around a foot. Very disappointed in how the yard looks now but it did do what it was intended to do. I’d not recommend this for someone who cares about their yard
From BioAdvanced
That is very disappointing to hear, and I can understand why you'd be frustrated with this outcome. This is certainly not the experience we intend whe...
A little bit goes a long way
Would Recommend[This review was collected as part of a promotion.] I’m surprised that this little bottle will cover up 5,000 square feet to kill crabgrass and other weeds. The instruction is clear and very easy to follow. What amazed me was that it killed the weeds, but not other plants we had in the lawn and garden. So far it looks pretty good, long term effect will need time to tell. I am interested to see how often I need to use this product each year.
From BioAdvanced
Excellent! We appreciate your review of BioAdvanced Extreme Crabgrass Killer! -Madison
Works
Would Recommend[This review was collected as part of a promotion.] Like everyone else looking to kill off those crabgrass weeds that somehow got really bad like mine. I also looked at the reviews, and was very disappointed in many reviews including this product. But I chose this one, and it works well. All the the weeds are turning brown and yellow. Even the ones in the cracks in the driveway are going dead. It takes time (2 weeks) for my yard pictured. And I expect more of the other weeds to die off as well. ...
From BioAdvanced
Great! Thank you for your review of BioAdvanced Extreme Crabgrass Killer! To note, the product has only been tested and approved for use in lawns, so ...
Works over time
Would Recommend[This review was collected as part of a promotion.] There is no instant killing of crabgrass. It takes two weeks to see some browning of the crabgrass starting at the root. Once that happens, over days the crabgrass plant starts to totally brown out and die. I don't know if my spraying was not even but about 3/4 of my crabgrass has been killed with some plants here and there still alive. I did follow the directions and tried to spray it evenly over my yard. Possibly a second applications is nece...
From BioAdvanced
Thank you so much for taking the time to share your feedback on BioAdvanced Extreme Crabgrass Killer. In some cases, a second application after two we...
Easy to use, long lasting
Would Recommend[This review was collected as part of a promotion.] This was so easy to use on our lawn. My post op husband even used it out the front. So far it seems to be doing it's job. I'm not noticing any new crab grass and what is there is starting to fade. Overall I'm very impressed with the performance so far. It goes quite a long way also a plus and super easy to use. It ticks all the boxes. 10/10 highly recommend.
From BioAdvanced
Brilliant! I am thrilled to hear of your positive experience with BioAdvanced Extreme Crabgrass Killer! Thank you for taking the time to share your th...
Does a fair job
Would Not Recommend[This review was collected as part of a promotion.] The container and instructions are straight forward to use. After allowing some time to work, many of the weeds are still alive, though some look weaker in color. The product does not do as good of a job as some of the name brands I have used in the past. Not the worst product, but I won't buy it again.
From BioAdvanced
That is very disappointing to hear, and I can understand why you'd be frustrated with this outcome. We'd like to see what we can do to help. Please re...
Easy and effective
Would Recommend[This review was collected as part of a promotion.] Easy and effective way to rid your lawn of pesky crab grass and weeds that are not wanted . I was able to do it on my own without assistance from anyone hook up spray and it will show it works in no time . I will definitely be sticking to this product and this lawn care line from now on . No hassle just clear effective and simple go to product
From BioAdvanced
That is terrific! Thank you for taking the time to share your positive experience with BioAdvanced Extreme Crabgrass Killer! -Madison
Buy it product works
Would RecommendThis products works on killing Crab Gress Does what it says
Verified Purchaser
Fantastic! Thank you so much for sharing your experience Bubba! Jessica


Didn't work on crabgrass or Japanese stiltgrass
Would Not RecommendUsed as directed and not any indication of working on any weeds at all. It's supposed to show signs of working after 5 days, but it's been a week and nothing happened at all.
I am very sorry to hear about your dissatisfaction with the product. I do understand how that experience would be frustrating. At your convenience pl...

Crabgrass is gone!!
Would RecommendHad neglected a hidden area of my backyard. Took a string trimmer to it and discovered the area completely overrun with crabgrass. Following the directions on the container, sprayed the area (and a few other minor areas of crabgrass in my lawn). In a couple days the crabgrass showed signs of dying. Within about 10 days I was able to rake most of it up, leaving only the little bit of good fescue that had not been choked out by the crabgrass. Same results in the couple areas I did in my regul...
From Extreme Crabgrass Killer 32 -fl oz Hose end sprayer Pre-Emergent Lawn Weed Killer
product failed to kill the crabgrass.
Would Not RecommendThe product instructions were followed and this product failed to kill the crabgrass.
Verified Purchaser
I am very sorry that you were not able to achieve the crabgrass control that you were hoping for with the product Mike. I can certainly understand ho...

Zero effect crabgrass grows bigger and nicer
Would Not RecommendI had maybe 20 crabgrass and few other weeds and I used this like label said and nothing happened. Waste of money try another brand this one is terrible.
I am very sorry to hear that you were not able to achieve the crabgrass control that you were looking for with the product. I do understand how frust...

Worked well, also kills Bermuda Grass
Would RecommendWorked as advertised for me. There is a clear line between my neighbor's crabgrass filled yard and my fescue. Important: Read the instructions! It considers Bermuda grass a weed also. I had a patch of wild bermuda mixed with the crabgrass and it wiped it all out.
Verified Purchaser
Perfect! Thank you so much for sharing your great results with the product! Jessica
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Awesome! Thank you so much for sharing your results! Jessica