
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.Not effective at all
Would Not RecommendTHis was recommended by Lowes staff and with yhree applications with two bottles, I have obtained ZERO results. This product is a waste of money.
From Extreme Crabgrass Killer 32 -fl oz Hose end sprayer Pre-Emergent Lawn Weed Killer
Kills crabgrass and gets rid of moles too!
I had a fair amount of crabgrass so I tried this product and it did a great job on the crabgrass. As an added bonus I had a mole problem at the same time and the moles disappeared after I applied this product. It’s happened twice now so I don’t think it was a fluke
From Extreme Crabgrass Killer 32 -fl oz Hose end sprayer Pre-Emergent Lawn Weed Killer Sweepstakes
Amazing! Thank you so much for sharing your experience Mike! Jessica
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So far, so good!
Would RecommendI was a little hesitant to try this but it now looks like it’s working. Took about 8 days to really see any progress. Buy more than you think you will need, it doesn’t go as far as advertised. I will probably be treating the lawn again in a couple of weeks as the crabgrass was bad.
Verified PurchaserSweepstakes
Thank you so much for your feedback Dusty! I am so glad you've had such great results with the product! Jessica
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Japanese Stilt Grass Killer
Effective but very slow. Expect weeks for it to work. Spray a month later to get the grass that seeded after initial application.
Sweepstakes
Thank you so much for your feedback on our Extreme Crabgrass Killer Ron! I am so please you were able to get the Japanese Stiltgrass under control! J...

Displeased with crabgrass killer!
Would Not RecommendI had to get two bottles to see the results, however I am sorry to say that the product does not work. First bottle had dispenser problem, the bottle siphon tube was too loose and will not dispense any product when used at the end of the hose pipe. So I returned it to the store and got another new bottle, and tried to spray one more time using the hose pipe. This bottle had the same problem, the lose siphon tube - It would not dispense any product. Finally, I ended up buying a two-gallon spray...
From Extreme Crabgrass Killer 32 -fl oz Hose end sprayer Pre-Emergent Lawn Weed Killer Sweepstakes
I am very sorry to hear about your experience with the product. I would like to hear more about your application. Please give me a call at 1-877-229-...

Make sure to follow the instructions.
Would RecommendUsed this on our grass and clover lawn since it does not affect clover. It takes a while for the crabgrass to start dying off. Make sure to follow application instructions closely.
From Extreme Crabgrass Killer 32 -fl oz Hose end sprayer Pre-Emergent Lawn Weed Killer Verified PurchaserSweepstakes
Great! Thank you so much for Sharing Anthony! Jessica


Good, but not great
Would Not RecommendThis liquid crabgrass killer was not very effective and the hose delivery system makes coverage more limited than advertised.
From Extreme Crabgrass Killer 32 -fl oz Hose end sprayer Pre-Emergent Lawn Weed Killer Sweepstakes
I am sorry to hear about your dissatisfaction with the product. I do understand how that would be disappointing. At your convenience please feel free...

BAYER ADVANCED 32-fl oz Concentrated Crabgrass Con
Would RecommendProduct is very effective in killing crabgrass.
From Extreme Crabgrass Killer 32 -fl oz Hose end sprayer Pre-Emergent Lawn Weed Killer Verified PurchaserSweepstakes
Sensational! I am so pleased that the crabgrass is under control! Thank you for your review! Jessica
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Best I've Ever Used
Would RecommendMy lawn had huge areas covered in crabgrass. Two applications of this and it almost all gone within 3 weeks.
From Extreme Crabgrass Killer 32 -fl oz Hose end sprayer Pre-Emergent Lawn Weed Killer Verified PurchaserSweepstakes
Phenomenal! I am so glad you were able to eliminate the crabgrass! Thank you for your review! Jessica
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Bayer advanced crag grass control
Would RecommendTwo days crab grass already dying
From Extreme Crabgrass Killer 32 -fl oz Hose end sprayer Pre-Emergent Lawn Weed Killer Verified PurchaserSweepstakes
Outstanding! I am so glad that you had such quick results with our Crabgrass Killer for lawns Bob! Jessica
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Crabgrass control
Would RecommendMost people seem to wonder that f they used a crabgrass preventer and fertilizer in the spring why are they having crabgrass showing up in their lawns now. Well the answer is simple, a crabgrass preventer is preemptive control which is good only for about 14 weeks. Most sales personnel in stores are either ignorant of this fact or never bring it up. That’s why you need this stuff now in a zone 5 climate. Hot weather coupled with a lapse of protection means you need post preventive maintenance no...
From Extreme Crabgrass Killer 32 -fl oz Hose end sprayer Pre-Emergent Lawn Weed Killer Verified PurchaserSweepstakes
Perfect! Thank you so much for your review Doug! I am so glad that you have had such great results to crabgrass! Jessica
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killed crabgrass not stilt weed we bought it for
Would Not Recommendwe bought this because it kills stilt weed. it didnt do a good job on stilt weed but did kill the crab grass. our stilt weed was pretty tall when i sprayed it (i did spray it heavy). it did shrivel a little but did not die. i trust if i cut it low and then treat 2 or 3 times it would kill the stilt weed but. also the restrictions on rain and cutting on the use of these sprays there is hardly an optimal time to apply. in all fairness it is mid summer, spring would have been a better time for me t...
From Extreme Crabgrass Killer 32 -fl oz Hose end sprayer Pre-Emergent Lawn Weed Killer Verified PurchaserSweepstakes
Thank you for your feedback Jo. Jordan
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Doesn’t work
Would Not Recommend1 week later and the crabgrass is still very green with no sign of going away.
From Extreme Crabgrass Killer 32 -fl oz Hose end sprayer Pre-Emergent Lawn Weed Killer
Thank you for sharing Kevin! Please keep in mind when using our Crabgrass killer for lawns visible effects usually appear within 4 – 10 days as a yel...

Didn't work for me...
Used it twice already. Didn't kill a single Crabgrass on my lawn. Waste of money for me.
From Extreme Crabgrass Killer 32 -fl oz Hose end sprayer Pre-Emergent Lawn Weed Killer
I am sorry to hear you had this experience. Please give me a call at 1-877-229-3724. We are available Monday-Friday 7 AM - 5 PM (CST). Please referen...

Bayer 32oz Crabgrass Control
Would RecommendGood Product, but you must apply before crabgrass starts to grow.
From Extreme Crabgrass Killer 32 -fl oz Hose end sprayer Pre-Emergent Lawn Weed Killer Verified PurchaserSweepstakes
Great Brian! I am thrilled to know you have had a successful application! Jordan
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I am sorry that you have not been able to get the weed control that you expected from the product. I do understand how frustrating that would be. I w...