How to Get Rid of Gnats in Kitchen

How to Get Rid of Gnats in Kitchen

"Gnats" is a catch-all term for several different tiny flying insects that commonly appear in kitchens. Getting rid of them effectively starts with knowing which type you're dealing with — because the source and solution differ.

Types of Kitchen Gnats

Fruit Flies — The most common. Small, tan/brown, red eyes. Attracted to fermenting fruit, juice, wine, and organic residue in drains. Breed in overripe produce and drain slime.

Fungus Gnats — Dark, mosquito-like. Breed in moist potting soil of houseplants. Often found near windows or plants rather than food.

Drain Flies (Moth Flies) — Small, fuzzy, moth-like wings. Breed in the organic slime inside drains and pipes. Found near sinks.

Phorid Flies — Humpbacked appearance. Can breed in drains, garbage, or even behind walls if there's a moisture issue.

Step 1: Identify the Source

Watch where the gnats congregate:

• Near fruit, wine, or the trash → fruit flies
• Near houseplants → fungus gnats
• Near the sink or drain → drain flies
• Appearing from walls or floor → possible moisture/plumbing issue

Step 2: Set Traps

For flying gnats of all types, a UV light trap is the most effective broad-spectrum solution. The Zevo 4 Flying Insect Traps attract and capture fruit flies, gnats, and house flies using blue and UV light — no chemicals, no mess, works continuously.

For fungus gnats specifically, yellow sticky traps placed near plants catch adults effectively.

Step 3: Eliminate the Breeding Source

• Fruit flies: Remove overripe produce, clean the drain with Amazon Basics Drain Cleaner Gel, seal the trash can
• Fungus gnats: Let soil dry out completely between waterings; consider repotting with fresh soil
• Drain flies: Deep clean the drain with gel cleaner and a drain brush; treat weekly until gone

Step 4: Clean Thoroughly

Wipe down all surfaces, clean under appliances, empty and clean the trash can, and rinse all recycling. Gnats of all types are attracted to residue and moisture.

Step 5: Prevent Re-Entry

• Check window and door screens for gaps
• Keep drains clean with monthly maintenance treatments
• Store fruit in the fridge during warm months
• Don't overwater houseplants

How Long Does It Take?

With the source eliminated and traps running, most gnat infestations resolve within 1–2 weeks. Fungus gnats may take longer if the soil stays moist.

When to Call a Professional

If gnats persist despite thorough cleaning and treatment, or if you suspect a plumbing leak or moisture issue behind walls, it's worth calling a pest control professional to inspect for hidden breeding sites.