Fungus Gnats


Fungus gnats are a very small, frail species of fly. They have a very mosquito-like appearance with a small body and long legs. Adults grow to be about 1/8th of an inch in length. Their bodies are black or grayish in color and they have a unique Y-shaped pattern on their wings; their wings are smoky in color. The fungus gnat’s larvae are worm-like in appearance, the body of the larvae is translucent and they have a black head capsule.

Are Fungus Gnats Dangerous?

Fungus gnats are not dangerous to people, they do not transmit disease nor do they bite or sting. When living inside a home, fungus gnats can cause damage to houseplants and young seedlings by feeding on their roots. Outside, if plants are planted in soil that is infested with fungus gnats the plants may experience root rot, turn brown and wilt.


Fungus gnats are attracted to properties that have very moist or overwatered soil, they can also be introduced into homes through outdoor potted plants that have been brought inside. The female fungus gnat will lay their eggs in moist soil and once their larvae hatch they feed on any fungus found in the soil, in addition to the roots of plants. Fungus gnats are attracted to light and can be found gathering around the doors and windows of homes. Also, these moisture seeking pests can be found invading homes where there is damp wood or drywall present.


Yes, we do! When you contact Modern for fungus gnat control in Houston, Katy or elsewhere in our service area, a licensed pest control technician will inspect your property, determine what conditions are attracting them and then develop a plan of action that results in a fungus gnat-free home or business! Visit our residential or commercial pest control page to learn more about getting rid of gnats or simply contact us for more information.


Preventing problems with fungus gnats on your property can be difficult, but there are a few things that you can do help deter these gnats from choosing your property to live on. Make sure that you are not overwatering your lawn or any gardens that are located on your property, and make sure that gutters are working properly to direct water away from the outside of your home. Remove any moisture damaged wood or drywall from your home and clean up any piles of wood debris from your property. Check potted plants for signs of fungus gnats before bringing them inside, and make sure not to overwater them once inside. Also, any spaces found around windows and doors should be caulked. To learn more about fungus gnats and how to prevent them, contact Modern Pest Control today.

Request My Free Inspection

Texas Pest Control Blog

It is no secret that wildlife can pose major problems when they invade our properties and sneak into our homes. It is also no secret that the closer you live to wooded areas, the more issues you can…

Read More >

To answer this question, you must first understand that ants are persistent. A colony outside will spread and is likely to reach your home at some point or another. And they are all over your Tomball…

Read More >

Concern is growing in regards to the threat ticks pose to people. This increase in concern has folks asking, "Do I still need to be worried about ticks?" While winter is not the time of year when…

Read More >