STEM Insect Trap - Indoor Fruit Fly & Gnat Pest Control for House, Home and Kitchen, Attracts & Traps Flying Bugs, Soft Blue…
Best for
Best indoor-safe
Amazon rating
Amazon aggregate, one input among many in the Verdict Score
Current price
$9.49
Updated Jun 27, 2026 · 1 min read
Sources behind this verdict
11 reviewers weighted by source trust
The consensus
What reviewers found
Synthesized across the trust-weighted source mix below.
Across the reviewers we read, the STEM plug-in light trap is the go-to indoor pick for fruit flies and gnats rather than a yard mosquito tool. It is one of the few products here with verified-tier hands-on coverage: The Spruce tested it and noted it caught plenty of bugs outdoors, and r/pestcontrol and r/savannah community members 'highly recommend' it for fruit flies, with one calling it more effective and more attractive than apple-cider-vinegar traps. The soft blue light and sticky-pad design make it quiet and discreet for kitchens.
What reviewers liked
- Verified-tier testing from The Spruce plus positive r/pestcontrol fruit-fly reports
- Quiet, sticky-pad indoor design with soft blue light
- Low entry price with replaceable cartridges
Where it falls short
- The Spruce's own test caught no fruit flies in one session
- Reviewers agree it does nothing for mosquitoes
- Ongoing cartridge replacement cost and narrow indoor-only use
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Across the reviewers we read, the STEM plug-in light trap is the go-to indoor pick for fruit flies and gnats rather than a yard mosquito tool. It is one of the few products here with verified-tier hands-on coverage: The Spruce tested it and noted it caught plenty of bugs outdoors, and r/pestcontrol and r/savannah community members 'highly recommend' it for fruit flies, with one calling it more effective and more attractive than apple-cider-vinegar traps. The soft blue light and sticky-pad design make it quiet and discreet for kitchens.
The disagreements are worth flagging. The Spruce's own test session caught no fruit flies (attributed to low bug activity at the time), and a Facebook user reported it killed only a couple of gnats, while r/Costco-adjacent threads note these light-and-sticky traps don't work on mosquitoes at all. At under $10 plus replaceable cartridges, the consensus is that it's an inexpensive, low-effort indoor fruit-fly and gnat catcher, not a general bug zapper.
- Insect Light Trap – This plug in bug trap attracts and captures a variety of flying pests, including mosquitoes, gnats, moths, house flies and fruit flies. Its efficient design helps keep your home protected from annoying insects, providing a simple solution to control flying pests without using insecticides or complicated devices. Perfect for tackling mosquitoes, house flies, gnats, moths, and fruit flies in kitchens, living rooms, and other areas.
- Insecticide-Free Solution – The plug-in light trap offers an insecticide-free way to capture flying pests. With no insecticides, mess, or noise, it ensures a hassle-free and discreet solution to pest control. The absence of harsh odors or sprays, providing an alternative to traditional insecticides while still being effective when used as directed.
- Versatile Insect Control – This trap works as a gnat catcher and fruit fly trap all in one. It attracts and traps gnats, mosquitoes, house flies and moths, making it an ideal solution for dealing with these pests in your home. Whether you're battling fruit flies in the kitchen or mosquitoes in the living room, when used as directed this trap provides results wherever it's needed most.
- People & Pet Friendly* – This insect trap is people and pet friendly when used as directed. The insecticide-free operation ensures it’s ideal for use around pets*, making it perfect for any room in your home. Its discreet design and gentle blue light allow for insect control without worrying about exposure to insecticides. *When used as directed.
- Simple Operation – The light trap is easy to use—simply insert the sticky refill cartridge into the base, plug the device into any wall outlet – the soft blue light attracts and traps flying insects when used as directed. The trap features a customizable 90-degree rotation for flexible placement, allowing you to position it in a way that fits seamlessly into your home’s layout.
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I have one mostly for pesky fruit flies and it works! Has trapped house flies and mosquitoes as well so I'm pleased.
I've used Zevo fly trap for a very long time now and it's really good. You'll never see a fruit fly ever again.
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“Mess-Free Pest Control? Fly Trap Review” · YouTube
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