---
product_id: 397054377
title: "STEM Insecticides, Flies, Mosquitoes, Gnats 10 oz."
brand: "stem"
price: "$24.61"
currency: USD
in_stock: true
reviews_count: 5
category: "Stem"
url: https://www.desertcart.us/products/397054377-stem-insecticides-flies-mosquitoes-gnats-10-oz
store_origin: US
region: United States of America
---

# Plant-based active ingredient Safe for indoor & outdoor use Kills flies, mosquitoes & gnats fast STEM Insecticides, Flies, Mosquitoes, Gnats 10 oz.

**Brand:** stem
**Price:** $24.61
**Availability:** ✅ In Stock

## Summary

> 🌿 Defend your space the natural way—because bugs don’t stand a chance!

## Quick Answers

- **What is this?** STEM Insecticides, Flies, Mosquitoes, Gnats 10 oz. by stem
- **How much does it cost?** $24.61 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/397054377-stem-insecticides-flies-mosquitoes-gnats-10-oz)

## Best For

- stem enthusiasts

## Why This Product

- Trusted stem brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Versatile Defense:** Effective indoors and outdoors, wherever bugs try to invade your space.
- • **Trusted by Experts:** Entomologist-tested formula ensures reliable, fast-acting bug control.
- • **Pet & People Friendly:** Formulated for safe use around your family and furry friends when used as directed.
- • **Fresh & Clean Experience:** No added dyes, fragrances, or chemical odors—just a subtle, natural scent.
- • **Nature-Powered Precision:** Botanical extracts scientifically optimized to eliminate bugs without harsh chemicals.

## Overview

STEM Insecticides 10 oz. is a plant-based bug spray scientifically formulated with botanical extracts to quickly kill flies, mosquitoes, and gnats. Safe for use around people and pets when used as directed, it offers a fresh scent without harsh chemical odors or dyes. Tested by entomologists, this versatile spray works effectively indoors and outdoors, providing a natural yet powerful defense against common flying pests.

## Description

The best defense against Mother Nature is Mother Nature. Meet STEM Kills Flies, Mosquitoes and Gnats � a bug spray for home and outdoor use 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 flies, mosquitoes and gnats. 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.

Review: Works amazingly well. - I hate fruit flies and every year I get inundated. Last year I battled them, but couldn't get them under control. I use the old vinegar with a drop of soap trick. That always worked. This time not so much. The population began to grow and spread outside the kitchen. I have cats and don't like using sprays, nor do I like the smells. But it was time to change tactics and because of it being safe for pets I decided to try. I worked. It was quick, and though has a smell, it's not too bad and doesn't hang around long. Neither did the fruit flies. I bought another bottle for this years incursion and needed very little when i got a few buzzing around. Didn't need much, it was controlled quickly.
Review: Bye-Bye, Bugs! 🌿 - So, I gave this Plant-Based Bug Spray a shot because, honestly, bugs are the worst, but I hate using sprays that smell like a chemical lab exploded. This one stood out because it's made with plant-based ingredients, which felt like a win for my home and the environment. 🦟 The Good Stuff: It Works! I used it indoors and outdoors, and it actually kept flies, mosquitoes, and gnats away. It didn’t just knock them out—it kept them from coming back for a while. Smells Pretty Nice: No overpowering chemical stench here. The botanical scent is fresh and natural, kind of like walking through a garden. Pet-Friendly Ingredients: With two dogs running around, I feel better knowing I’m not spraying harsh chemicals near them. Versatile: Works great for random indoor fly invasions and keeping bugs off the porch during hangouts. 🤷‍♀️ What Could Be Better: Short-Term Fix: While it’s great at getting rid of bugs on the spot, it’s not a long-term deterrent. You’ll probably need to reapply if you’re outside for a while. Spray Design: The bottle is functional, but the spray could have a finer mist for better coverage. 🚪 How It Stacks Up: Compared to standard bug sprays, Stem is a great alternative if you’re looking for something plant-based and effective without the toxic vibes. It doesn’t have the crazy strength of DEET-heavy sprays, but for everyday use, it’s solid. If you’re like me and want to keep the bugs at bay without dousing your space in chemicals, this is definitely worth a try. Just keep it handy for re-sprays during longer outdoor hangs. 🌿✨

## Features

- Bug spray that quickly kills flies, mosquitoes and gnats
- 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 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09GD28ZS1 |
| ASIN  | B09GD28ZS1 |
| Best Sellers Rank | #4,358 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #137 in Insect & Pest Repellent Sprays |
| Brand Name | STEM |
| Customer Reviews | 4.0 4.0 out of 5 stars (4,937) |
| Date First Available  | September 15, 2021 |
| Global Trade Identification Number | 00046500032813 |
| Included Components | Spray |
| Item Form | Aerosol |
| Item Volume | 10 Fluid Ounces |
| Item Weight | 10 Ounces |
| Item model number  | 3281 |
| Manufacturer | SC Johnson |
| Manufacturer  | SC Johnson |
| Material Features | Vegan |
| Number of Items | 1 |
| Product Dimensions  | 4.73 x 2.19 x 10.5 inches; 10 ounces |
| Scent Name | Unscented |
| UPC | 046500032813 |
| Unit Count | 10.0 Ounce |

## Product Details

- **Brand:** STEM
- **Item Form:** Aerosol
- **Item Volume:** 10 Fluid Ounces
- **Material Feature:** Vegan
- **Scent:** Unscented

## Images

![STEM Insecticides, Flies, Mosquitoes, Gnats 10 oz. - Image 1](https://m.media-amazon.com/images/I/61QcNEdn0FL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works amazingly well.
*by Z***N on February 17, 2026*

I hate fruit flies and every year I get inundated. Last year I battled them, but couldn't get them under control. I use the old vinegar with a drop of soap trick. That always worked. This time not so much. The population began to grow and spread outside the kitchen. I have cats and don't like using sprays, nor do I like the smells. But it was time to change tactics and because of it being safe for pets I decided to try. I worked. It was quick, and though has a smell, it's not too bad and doesn't hang around long. Neither did the fruit flies. I bought another bottle for this years incursion and needed very little when i got a few buzzing around. Didn't need much, it was controlled quickly.

### ⭐⭐⭐⭐⭐ Bye-Bye, Bugs! 🌿
*by D***E on January 5, 2025*

So, I gave this Plant-Based Bug Spray a shot because, honestly, bugs are the worst, but I hate using sprays that smell like a chemical lab exploded. This one stood out because it's made with plant-based ingredients, which felt like a win for my home and the environment. 🦟 The Good Stuff: It Works! I used it indoors and outdoors, and it actually kept flies, mosquitoes, and gnats away. It didn’t just knock them out—it kept them from coming back for a while. Smells Pretty Nice: No overpowering chemical stench here. The botanical scent is fresh and natural, kind of like walking through a garden. Pet-Friendly Ingredients: With two dogs running around, I feel better knowing I’m not spraying harsh chemicals near them. Versatile: Works great for random indoor fly invasions and keeping bugs off the porch during hangouts. 🤷‍♀️ What Could Be Better: Short-Term Fix: While it’s great at getting rid of bugs on the spot, it’s not a long-term deterrent. You’ll probably need to reapply if you’re outside for a while. Spray Design: The bottle is functional, but the spray could have a finer mist for better coverage. 🚪 How It Stacks Up: Compared to standard bug sprays, Stem is a great alternative if you’re looking for something plant-based and effective without the toxic vibes. It doesn’t have the crazy strength of DEET-heavy sprays, but for everyday use, it’s solid. If you’re like me and want to keep the bugs at bay without dousing your space in chemicals, this is definitely worth a try. Just keep it handy for re-sprays during longer outdoor hangs. 🌿✨

### ⭐⭐⭐⭐ It works!
*by M***N on September 7, 2025*

This product does work pretty well. I've had drain flies come every summer and stay until winter. They drive me crazy! I didn't want to spray a strong, caustic, poison in my bedroom (they were everywhere!) where there's no windows or ventilation whatsoever. So I thought I'd try this and I am not sorry. It says to not spray it in the air and to wait for the insect to land, then spray the insect. I just sprayed my whole room anyway and it worked great there was only 1 tiny one flying around for the next few days, it was great! I've only had to spray it twice (the 2nd time was directly at one I saw). I'm not crazy about the smell, but it's a lot better than the strong chemical smell that would come with Raid or one of those products. It's that lemongrass smell. I only have 2 small issues with this product. #1 the trigger/sprayer. I actually like it because it's easy to use, but it's too easy is the problem. You're meant to push the trigger with your thumb, not pull the trigger with your index finger. Well, my genius self, didn't actually look to make sure it was pointed in the right direction and tried squeezing the trigger (like a can of Febreze). I sprayed myself directly in the forehead and top of my head. Thankfully I had the can tipped and didn't get my eyes, just my freshly washed, still damp, hair. So make sure you know what way the nozzle is loi ting before you spray. Push the button with your thumb, NOT your index finger. #2- all the oil everywhere! I sprayed the air in my kitchen and then almost bust my ass! The floor was so slick! I had to mop the entire floor with hot water and dawn dish soap. The directions DO say toward for the insect to land, spray it for at least a second, then use soap & water to clean the area. This is turning into a lot of work, just to kill a few drain flies. I do feel better knowing that im using a non toxic, safe for humans & pets, product. Overall, I'm happy with the results.

## Frequently Bought Together

- STEM Kills Flies, Mosquitoes And Gnats: Plant-Based Active Ingredient Bug Spray, Botanical Insecticide For Indoor And Outdoor Use; 10 fl oz (Pack Of 1)
- STEM Kills Ants, Roaches And Flies: Plant-Based Active Ingredient Bug Spray, Botanical Insecticide For Indoor And Outdoor Use; 12 fl oz (Pack Of 1)
- STEM Kills Ants, Roaches And Spiders: Plant-Based Active Ingredient Bug Spray, Botanical Insecticide For Indoor And Outdoor Use; 10 fl oz (Pack Of 1)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-04-24*