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Member ratings & reviews for
STEM Kills Ants, Roaches and Flies (12 fl. oz., 3 pk.)
4.5 out of 5 stars
stars2,388 ratings2,339 reviews
  1. 5 stars67% (1,611)
  2. 4 stars23% (560)
  3. 3 stars6% (145)
  4. 2 stars1% (34)
  5. 1 star2% (38)

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Showing 361-370 of 2,339 reviews
May 8, 2025
susanh249_2894
5 out of 5 stars review

Great plant based spray

[This review was collected as part of a promotion.] This worked great for an ant problem by our garage! It's not strongly scented with is great and it's plant based which is a must because our cat loves to go outside!

Review from influenster.com
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Jun 11, 2025
elbyl_8364
3 out of 5 stars review

Work perfectly

[This review was collected as part of a promotion.] I spray it around my bedroom and kitchen. It seem work well to keep bug out of my house. It do not have a strong chemical smell. It safe for pet too. Easy to spray

Review from influenster.com
Helpful?35USB6DB2TKX13847072851
May 27, 2025
kissin_cupcake_5600
4 out of 5 stars review

Working

[This review was collected as part of a promotion.] just in time for summer this product really works. very effective and not a strong scent. Very big package for a good price. Works very easy with. Spray

Review from influenster.com
Helpful?35USB6DB2TKX13847072851
Oct 8, 2022
Darlene
1 out of 5 stars review

Verified Purchase

Stem

Not very effective

Helpful?35USB6DB2TKX13847072851
reply from Supplier Response

Darlene, we're sorry to hear STEM Ants, Roaches & Fly Spray didn't perform as we'd expect it to. Typically, this product is very effective when spraying insects directly. As your purchase didn't meet our expectations, we'd like to hear more about what happened to best assist. When you're free, please give us a call at 1-800-558-5252 (weekdays 8 AM to 5 PM CT) and provide reference number 020843058A. We hope to talk soon! – Rachel, STEM Consumer Care

Aug 28, 2022
P T
5 out of 5 stars review

Verified Purchase

Magnificent effectiveness!!!

Effective!!

Helpful?35USB6DB2TKX13847072851
Aug 29, 2022
Nana
5 out of 5 stars review

Love/Hate

I have a love/hate relationship with this product. It is the most effective spray for a fast knockdown & quick kill. It works fantastic for house flies. When the flies land on surfaces, one quick spray and the fly falls immediately. Just be careful in the kitchen not to allow the mist to land on food or food preparation areas due to the oily residue. The oily residue is where the hate part of my review comes in, although the trigger sprayer does allow for a more directed spray with minimal overspray.

Helpful?35USB6DB2TKX13847072851
Aug 23, 2023
Krc245
5 out of 5 stars review

Works best outside

This works very well outside. For some reason this year I am getting ants at the end of the drive here it meets the curb. Both the spray and this spray liquid work great. I would only use this product on the outside and not inside - use the spray that comes in a can version of Stem). The reason is the smell is a bit strong and it is oily but outside works great.

Helpful?35USB6DB2TKX13847072851
Jun 18, 2022
Stella
5 out of 5 stars review

Excellent

I received product reimbursement in exchange for my honest review. It kills instantly on contact so it is very effective. The good thing is it also design to be kid and pet friendly. It is not dry out shortly so I have to wipe out the treated area but it is not an issue.

Review from stemforbugs
Helpful?35USB6DB2TKX13847072851
Jun 28, 2022
K M
3 out of 5 stars review

Smells pleasant

I have received product reimbursement in exchange for my honest review. Smells like citronella. Pleasant lemongrass. Is effective and kills ants. There are no directions, so not sure how I am to catch flies or roaches to kill them. Would buy as a ant killer.

Review from stemforbugs
Helpful?35USB6DB2TKX13847072851
Jun 20, 2022
MrJCharles
3 out of 5 stars review

Seems to be working as described

I received product reimbursement in exchange for my honest review. I use this product on my porch while sitting outside to eliminate the flying insects. It seemed to do a pretty good job keeping bugs away. the only drawback I see is it is a spray bottle not aerosol. So you just get a stream not a mist when spraying.

Review from stemforbugs
Helpful?35USB6DB2TKX13847072851