The Ultimate Guide to Mixing Mosquito Bits for Fungus Gnats: The Tea Method
mosquito bits won't work if you sprinkle them dry. here's the tea method that actually kills fungus gnat larvae — step by step.
PLANT CARE
Valerie
6/20/20263 min read
Say Goodbye to Fungus Gnats with the Tea Method
Fungus gnats can be a real pain for plant lovers, and if you’ve tried everything under the sun to get rid of them, you might want to consider an effective and eco-friendly solution. Enter! The tea method using mosquito bits. By mixing these bits correctly, you can effectively target those pesky larvae lurking in the soil without worrying about harming your plants.



Why Dry Mosquito Bits Just Don't Cut It
Let’s be real – if you’ve sprinkled dry mosquito bits on your soil, you probably noticed that they didn’t quite do the trick. Why? Because when left dry, the bits can get damp and moldy, failing to break down quickly enough to release the crucial bti where it’s needed most. Unfortunately, I learned this the hard way. After scattering them over a pothos, I watched fuzzy mold develop in just days!
Brewing Your Own Mosquito Bit Tea
Ready to brew your own mosquito bit tea? It’s quite simple! Here’s how you can do it step by step:
Step 1: Measure out 4 tablespoons of mosquito bits per gallon of warm water.
Step 2: Let the mixture steep for 30 to 45 minutes. This is when the bti bacteria does its magic!
Step 3: Strain out the soggy bits to avoid mold on your plants.
Step 4: Water your houseplants thoroughly with the strained liquid as you would normally.
Repeat this process once a week for three weeks to ensure you hit those larvae hard! If you’re using a well-draining potting mix, the tea will penetrate faster and target the larvae more effectively.


Mixed your tea? here's how long it takes to work
Pairing Up with Sticky Traps
While your mosquito bit tea is busy annihilating the larvae, it's a great idea to use yellow sticky traps to catch any adult gnats flying around. These traps will tackle the adult gnats while the tea addresses the larvae hidden in the soil. It’s a powerful one-two punch against gnat life!


Your FAQs Answered
Do mosquito bits actually work for fungus gnats? Yes, the bti in mosquito bits specifically targets larvae and is one of the most effective treatments out there.
How often should you use this tea on houseplants? Once a week for three weeks should do the trick, or continue until you see no more adults.
Can you overdo it with mosquito bits? Yes, sticking to 4 tablespoons per gallon is crucial. Over-application can lead to moisture issues for your plants.
Are they safe for pets and plants? Absolutely! Bti is harmless to people, pets, and beneficial plants; it solely targets gnat larvae.
About the Author
Hi, I’m Valerie – a plant enthusiast who’s been troubleshooting houseplants for years! From rescuing rootbound beauties to battling fungus gnats, I share proven methods and tips that have worked wonders on my own plants.
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