How to Identify Fungus Gnats

What Do Fungus Gnats Look Like?

Fungus gnats are small, long-legged flies similar in appearance to mosquitoes. They only grow 2 to 3 mm long. Fungus gnats have long segmented antennae, slender bodies, and smokey-colored wings. They are light brown to black in color and have stripes on their abdomen. Fungus gnats are weak fliers and form large mating swarms that look like small, dark clouds of bugs.

What are the Signs of a Fungus Gnat Infestation?

Fungus gnats are commonly found outside in areas of moist vegetation. These insects are often brought indoors by accident when house plants are moved inside during the winter. Fungus gnats are attracted to moisture and organic materials. Well-watered house plants may drive these flies inside. You may also find fungus gnats near garbage disposals and overripe fruit.
Fungus Gnat Swarm

Fungus Gnat Control in Milwaukee, WI

Advanced Wildlife and Pest Control offers professional fly control services in Milwaukee and southeastern Wisconsin. Our certified pest exterminators provide reliable, long-lasting solutions to eliminate nuisance fungus gnats for homeowners and businesses. Our targeted pest treatments and recurring maintenance services will ensure your property remains pest-free throughout the year.
Fungus Gnat Swarm

Are Fungus Gnat Harmful?

Fungus gnats do not bite, sting, or transmit disease. Fungus gnats are primarily a nuisance for homeowners as they buzz around your home. Their larvae can cause house plants to wilt as they feed on the roots. Fungus gnats breed rapidly. A minor issue can quickly become a severe fly infestation if not controlled promptly.

How Can I Prevent Fungus Gnats?

The following prevention tips will help deter fungus gnats from your property.
  • Keep fruits and vegetables from sitting on your countertops for a while.
  • Store fruits and vegetables inside airtight containers or in the refrigerator.
  • Inspect groceries, fruits, vegetables, and potted plants before bringing them inside.
  • Seal any gaps or cracks in the foundation, exterior walls, doors, and windows.
  • Repair any torn door or window screens.
  • Regularly take out the garbage.

Fungus Gnat FAQs

Frequently Asked Questions

Do fungus gnats bite?

No, fungus gnats do not bite people or animals. They are not known to carry harmful pathogens.

What is the life cycle of a fungus gnat?

Fungus gnats are short-lived insects. These flies for large mating swarms. Fungus gnats undergo a complete metamorphosis from egg to adult. Female fungus gnats lay up to 30 eggs in the soil. The larvae will hatch within a few days and feed on organic matter and plant roots in the soil. The larval development takes two to three weeks. After pupating in the ground, adults emerge and live for about ten days.