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1.3 -Gallon Ready to Use Pre-Emergent Brush Killer

Ratings & Reviews for BioAdvanced 1.3 -Gallon Ready to Use Pre-Emergent Brush Killer

4.1
2934
Review
 4.1 out of 5
2934 Reviews


67% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

Customers overwhelmingly praise the product's effectiveness at killing brush, weeds, and poison ivy, with many reporting visible results within days and long-lasting prevention for over a year. The battery-powered sprayer is frequently cited as a major convenience that enhances usability and application consistency. Most reviewers emphasize it works where other products failed, particularly for tough vegetation and invasive species. However, some customers report no visible results even after multiple applications, with a few noting delayed effects or sprayer clogging issues. Overall, most consider it highly effective despite occasional inconsistent performance.

Customer review summary generated by AI, including incentivized reviews.
2934 Customer Reviews

This Stuff Really Works

[This review was collected as part of a promotion.] This product works. It took about 4 days to see a difference and by 6 days the bush was dead. See pictures. We would recommend this product especially for hard to kill weeds and bushes.

August 22, 2026

From BioAdvanced

Response from Customer Affairs

Wonderful! We're glad to hear of your positive experience with BioAdvanced Brush Killer Plus. Thank you for taking the time to share your success!

Customer AffairsAugust 26, 2026

Does not work

Would Not Recommend

Sprayed it on patches of ground ivy 2 weeks ago. Some areas wilted but not one patch died. I would really lime my money back! Wasted my time and money.

August 22, 2026
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Response from Bayer Advanced Customer Care

I'm sorry to hear of your disappointment with BioAdvanced Brush Killer Plus. As the product is a selective herbicide that is designed to work sys... Read More

Bayer Advanced Customer CareAugust 23, 2026

BayerAdvanced

Average Weed Killer

[This review was collected as part of a promotion.] Used this product on a forever growing brush patch in my yard. The product size was great. When applying, the product had a small smell, but not unbearable, and was a little difficult to apply with a manual, cheap plastic sprayer. Would’ve been better if it was an automatic sprayer. The product did slightly kill some of the weeds but they were still tough to pull out and didn’t completely kill them- see the before and after pictures. Honestly I...

August 21, 2026

From BioAdvanced

Probably pretty good

[This review was collected as part of a promotion.] It killed stuff but not the way I expected. I probably should’ve put in a little more effort and cut everything back first but it definitely killed things

August 21, 2026

From BioAdvanced

Effective but takes a awhile

[This review was collected as part of a promotion.] When I first received the bottle about a quarter of the contents were spilled in the bag it came in. The seal was not effective at all. The actual product worked fine. It took a couple of weeks for it to work and had to spray down the area twice. But once it worked killed everything effectively.

August 21, 2026

From BioAdvanced

Response from Consumer Affairs

We appreciate you taking the time to share your thoughts on BioAdvanced Brush Killer Plus. As the product is a selective herbicide that is designed to... Read More

Consumer AffairsAugust 23, 2026

Did not work on anything as stated on package

Would Not Recommend

This was a very disappointing purchase. First round, I did the 8oz mix and even a little more to be sure. 4 days later, with no rain and mostly sunny, a few things started to show signs of wilt. Hit the same area with the rest of the bottle, yep - mixed it very strong, and added water to take it to the gallon marker on the sprayer, per directions. 3 days later and one weed and a small crabgrass in a gap on the concrete was somewhat brown. Nothing at all was dead. Sprayed some sort of ivy that ha...

August 20, 2026
From 32 -fl oz Concentrate Brush Killer
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Response from Bayer Advanced Customer Care

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. ... Read More

Bayer Advanced Customer CareAugust 25, 2026

BayerAdvanced

Effective and easy to use

[This review was collected as part of a promotion.] Our backyard is a bit of a jungle, overrun by weeds and vines that seem to take over everything else. I received a sample of the Bioadvanced Brush Killer Plus to try, and I had plenty of weeds to try it on. The bottle has a built in sprayer, and it was very easy to use. Within a few days of spraying it, I could already see the vines and even some of the bigger problem plants drying up and dying. I am very impressed with how easy it was to u...

August 20, 2026

From BioAdvanced

Response from Customer Affairs

Wonderful! We're glad to hear of your positive experience with BioAdvanced Brush Killer Plus. Thank you for taking the time to share your success!

Customer AffairsAugust 24, 2026

Not killing bittersweet

Would Not Recommend

I bought this to spray a huge bittersweet after it was cut down. I applied it to the cut points over several days. I do not see any signs of wilting. The brush was removed and product applied to cut stems left. Also along ground where bittersweet was spreading …

August 20, 2026
From 1 -Gallon Brush Killer Verified Purchaser
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Response from Bayer Advanced Customer Care

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. ... Read More

Bayer Advanced Customer CareAugust 24, 2026

BayerAdvanced

Great product / easy application

[This review was collected as part of a promotion.] Great product, easy to use. Instructions were easy, not to heavy , no crazy smell. The application and compatibility were great and no residue was present.

August 19, 2026

From BioAdvanced

Response from Consumer Affairs

Wonderful! Thank you for your review of BioAdvanced Brush Killer Plus!

Consumer AffairsAugust 23, 2026

Nice

[This review was collected as part of a promotion.] I like this product! It works decently to kill weeds and poison ivy. It takes a little bit to work but I’m satisfied with the outcome of this product.

August 19, 2026

From BioAdvanced

Response from Customer Affairs

Wonderful! We're glad to hear of your positive experience with BioAdvanced Brush Killer Plus. Thank you for taking the time to share your success!

Customer AffairsAugust 21, 2026

A must try

[This review was collected as part of a promotion.] Great performance from this product! In no time, my problem was solved! Thanks for allowing me to try this! I do recommend this to outdoor lovers.

August 19, 2026

From BioAdvanced

Response from Consumer Affairs

Fabulous! We are thrilled to hear of your success with BioAdvanced Brush Killer Plus! Thank you for your review!

Consumer AffairsAugust 19, 2026

Great first results.

[This review was collected as part of a promotion.] We applied the BioAdvances brush killer plus as instructed. We have seen areas that are definitely dying off. We are hoping as the summer progresses we will see less of the unwanted weeds. The sprayer works well, no drips and we could target the product where we wanted. Will continue to use.

August 19, 2026

From BioAdvanced

Response from BioAdvanced Consumer Affairs

Wonderful! Thank you for taking the time to share your success! -Prisilla

BioAdvanced Consumer AffairsAugust 19, 2026

Didn't work for me

[This review was collected as part of a promotion.] I was hoping it would work for this mess, but unfortunately, after spraying it 3 times and waiting for it to die, I ended up just having to cut it down. Maybe it was the wrong kind of "brush," but it didn't even kill a single leaf. I will try it in another area of my yard, but this is where is is needed since it grows between 2 fences.

August 17, 2026

From BioAdvanced

Response from BioAdvanced Consumer Affairs

I'm sorry to hear of your disappointment with BioAdvanced Brush Killer Plus. As the product is a selective herbicide that is designed to work systemic... Read More

BioAdvanced Consumer AffairsAugust 20, 2026