Plant Pests & Diseases
How to Deal With Fungus Gnats

What Fungus Gnats Looks Like
Tiny black flies hovering over the soil surface..
Why It Happens
Overwatering -- larvae live in wet, soggy compost..
How to Fix It
Let the top 1-2 inches dry, lay yellow sticky traps, and drench soil with a 1:4 hydrogen-peroxide water mix. Bottom-water..
Stopping It Coming Back
Water only when the soil is truly dry; use a gritty top dressing.. It is most active in cooler months, so stay extra watchful then.
Frequently Asked Questions
Q: Will Fungus Gnats spread to my other plants?
A:
Yes, most pests move fast -- isolate the affected plant the moment you spot it.
Q: Can I use the same treatment for everything?
A:
Neem oil and insecticidal soap cover most soft-bodied pests, but root rot and fungal issues need a different (drier) approach.
Q: How long until it is gone?
A:
Expect 2–3 weekly treatments before you stop seeing signs.
Q: Should I throw the plant away?
A:
Rarely. Most outbreaks are reversible if you act early and stay consistent.
Catching Fungus Gnats early is half the battle. Keep our pest identifier tool bookmarked and check new growth every time you water.



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