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STEM

STEM Plant-Based Bug Spray, Ant, Roach, Fly Killer Indoor Outdoor, 12 oz

  • Based on 16,623 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Sep 3 – Sep 4
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Size: 12 Ounce (Pack of 1)


Features

  • Bug spray that quickly kills ants, roaches and flies
  • Plant-based active ingredient bug killer safe for use around people and pets (when used as directed)
  • Entomologist tested bug spray made with botanical extracts to kill bugs; with a fresh scent and no added dye, fragrance, or harsh chemical odors
  • Bug killer for indoor and outdoor use, wherever bugs try to bother you
  • Rooted in Nature, Optimized by Science?

Description

The best defense against Mother Nature is Mother Nature. Meet STEM Kills Ants, Roaches and Flies � a bug spray for home and outdoors made with botanical extracts that are safe for you, but deadly for bugs. STEM�s scientists decode the power of nature, scientifically optimizing it into effective bug-fighting forms. STEM plant-based active ingredient bug spray is formulated with botanical extracts to kill ants, roaches and flies. Our insecticide is safe for use around people and pets (when used as directed) and was tested by entomologists. It has no added dye, fragrance, or harsh chemical odors, and is made for indoor and outdoor use. STEM helps protect your family. Rooted in Nature, Optimized by Science.

Product Dimensions ‏ : ‎ 1.9 x 3.9 x 9.25 inches; 12 ounces


Item model number ‏ : ‎ 123


Date First Available ‏ : ‎ September 15, 2021


Manufacturer ‏ : ‎ SC Johnson


Best Sellers Rank: #61 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden) #6 in Insect & Pest Repellent Sprays


#6 in Insect & Pest Repellent Sprays:


Customer Reviews: 4.3 4.3 out of 5 stars (16,623)


Item Volume: 12 fluid ounces


Number of Items: 1


Unit Count: 12 Ounce


Size: 12 Ounce (Pack of 1)


Brand Name: STEM


Manufacturer: SC Johnson


UPC: 046500032783


Global Trade Identification Number: 83


Item Highlight: Botanical Insecticide, Kills Ants, Roaches, Flies, Plant-Based Active Ingredient, Indoor Outdoor Use, Non-Toxic Formula


Item Weight: 12 ounces


Model Number: 123


Manufacturer Part Number: 123


Scent Name: Fresh Botanical


Item Form: Trigger


Target Species: Insects


Material Features: Unscented


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sep 3 – Sep 4

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

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View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • UPDATE: THE BEST INSECT/RODENT DETERRENT EVER! BUY IT AND PUT YOUR MIND AT EASE
Size: 12 Ounce (Pack of 1)
I'm updating my review: I LOVE THIS STUFF AND NOTHING ELSE WORKS LIKE IT. It's easy. As mentioned below they state STEM may need reapplication, but not that often. And, a little goes a long long way. Plus, because the price is right, you can continue to purchase it as you need it. Critters really hate it and go away. It is so worth it. If you spray them they die immediately but I don't care if they die. I just want them to stay away and they do! The smell is overwhelming and I don't care! The scent alone DETERS anything from insects to rodents. It keeps me from having to set traps. It keeps me from using neurotoxin sprays. I love it and wish it didn't smell so strong but THAT'S WHY IT WORKS!!! It's only essential oils and it is all natural. After the third yellow sac spider (and he seemed well-fed) landed in my bed, I had - had enough. I give a quick SPURT anywhere I might see a cobweb or in corners and on the ceiling fan ...because they seem to like it up there, dopes. Regardless, the smell alone is a deterrent! Wouldn't it be nice if you didn't see them at all! Wouldn't it be nice if they just stayed away? I don't mind reapplication because it doesn't take much. A SPRITZ DOES THE TRICK. Thankfully the price is right or I would look into other options but the lemongrass in this product is despised by spiders and rodents. A small spritz and your whole room will be a deterrent. I would now like to get some sleep and think I will. I don't like seeing creatures and I don't want them around. This keeps them away in the first place! Isn't that what you want? Don't hesitate. Don't bother with ant traps. Use this and repeat the usage until it stops. You can use traps outside the house, if you have more trouble. It does leave a horribly oily residue so don't spray it anywhere you can't wipe down later. That's the only drawback and it's not a big one. Despite the fact that this may need reapplication, it's surprising how well it works. I had to leave one of the homes unoccupied for quite a while (years). I bought this for ants, but was surprised to find that some mice had also taken up residence in the basement. I would spray and although the scent would dissipate, it actually took some time... Longer than they say on the bottle. I also found wetting cardboard, cotton balls or anything absorbent could be placed in various locations and that makes for easy cleanup. I'd simply spray again, and eventually, it seemed they did not want to come back. As far as the ants go, they are dead on contact. All I needed to do was find the general location where they were coming from and it was over. One small word of caution, if you are sensitive to smells, you won't get away scott-free. It may be natural but a little goes a long way. Overspraying, was overwhelming. It gave me headaches. IT WAS STILL WORTH IT! Don't overspray. ... show more
Reviewed in the United States on March 20, 2025 by Amazon Customer
    • Very pleased. IT WORKS!
Size: 12 Ounce (Pack of 1)
I had an ant problem in the master BR of my RV. While waited for my product, I cleaned shelves, walls and floors with a 50/50 mix of vinegar and water. This was not helpful at all as the ants were not deterred by this at all. I then made a mixture of Bay leaf, peppermint, and rosemary essential oils with rubbing alcohol and water. It was STRONG in terms of the smell. I sprayed everywhere that I was seeing ants. This actually was helpful but I was still finding an ant here and there and a few of them even had the nerve to get into bed with me. Cringe. Then my STEM Spray showed up the next day. I have literally seen one ant since using this spray, and it was already half dead. I was out of the RV all day today. Upon my return, not a single ant to be found. I was pleasantly surprised. The spray pump works very well and is easy to spray into tight spaces. The scent is mild compared with the mixture I had made. It dissipates fairly quickly upon dry down. I appreciate that it’s all natural ingredients that are not harmful to pets or humans. I will definitely be keeping this product on hand at all times. I can’t recommend it enough if you have an ant problem. ... show more
Reviewed in the United States on August 17, 2026 by Gin
    • Kills ants on contact
Size: 12 Ounce (Pack of 1)
It works very well. We had some ants that turned up out of the blue and this stopped them immediately. We have cats so it had to be non toxic. The smell is a bit strong but not a bad smell. Be aware that is oily and slippery. You will need to wipe it off or you can easily go sliding across the floor. Luckily it works pretty much on contact so you can wipe it off within a short period of time. ... show more
Reviewed in the United States on August 7, 2026 by Kindle Customer kk
    • Death to Ants
Size: 12 Ounce (Pack of 1)
It does what it’s supposed to. It’s freaking hot and dry in Texas. Ants decided to rent my counter as their living space, then my pantry, and now my bathroom. As soon as I spray this stuff, they stop moving and die. Only con is the smell is a little overpowering. It smells like really potent aroma oils and the scent lingers. ... show more
Reviewed in the United States on August 21, 2026 by Sarah
    • I LOVE this spray
Size: 12 Ounce (Pack of 1)
I like that this is a natural product, and it does seem to work. It only works on contact with bugs. Really like this product, it’s safe for people, and it’s also safe for pets. It definitely gets rid of ants and flies, and it’s well worth the money. Nice that it can be used indoors and outdoors, since I need something to use against these indoor ants, flies, and random bugs I find on the wall or ceiling. ... show more
Reviewed in the United States on June 10, 2026 by Mewomeow
    • Not for Plants. Otherwise might be a good product.
Size: 12 Ounce (Pack of 1)
Review Image by Lionsden
Not really a issue with the product, but maybe more my fault. I searched for a insecticide that would kill nats, flies, etc and was pet and plant friendly. This was the first item that came up and m fault for not researching more but it is not plant friendly. I didn't spray directly on some of my plants but they must have gotten misted some when I applied around them and boy did it do a number. Works better than Round-Up. Essentially it burns the tissue and in my case for 4 houseplants, killed two of them and severely damaged the other two but they have survived. Amazing how quickly the plants showed the damage and was only an hour or so. ... show more
Reviewed in the United States on July 15, 2026 by Lionsden
    • Works great! Highly recommend!!
Size: 12 Ounce (Pack of 1)
I LOVE THIS PRODUCT!!! Recently there are flies in my basement and while trying to find the source of the problem I needed some products to help eradicate the issue. This works great for that! 1 spray and they die soon after. The smell/scent isn't bad at all. I've also used in my kitchen window. Great product! I love that it's safe for children & pets. Highly recommend!! ... show more
Reviewed in the United States on August 23, 2026 by Amazon Customer
    • Isn’t as effective as advertised
Size: 12 Ounce (Pack of 1)
The spray is good. It does somewhat of the job, but it’s not really as great as I thought it would be. I mean, it helped to keep some of the fruit flies in my house gone but there’s still a lot on there. It doesn’t smell bad though, and it is safe to use with having my cat. That’s definitely a plus cause I always try to get something that is not going to harm my cat and it has a label and says it is safe to use when you have animals ... show more
Reviewed in the United States on August 1, 2026 by Teresa Marie Zittle

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