If you spot flies and gnats in your home, the type of species you’re dealing with should dictate the selection of an appropriate pest control method. Here’s what you need to know about flies and gnats in the San Antonio area.

What types of flies and gnats are common in San Antonio?

Fruit flies, house flies, bottle flies, drain flies, and fungus gnats are all found in homes in this area. Flies are opportunistic feeders and can overrun your living space if left unchecked. Some flies and gnats that you will commonly see in San Antonio are, fruit flies, house flies, bottle flies, drain flies, and fungus gnats.

fruit fly in san antonio texas home

Fruit flies

Fruit flies are often confused with fungus gnats due to their small size. Rotting fruit and vegetation can attract these pests. They are also attracted to fermented drinks such as beer and wine. They are often found in garbage cans and sink drains.

house flies invading san antonio texas home

House flies

House flies are usually gray or black in color and grow to about 1/4 inch in length as adults. Like most flies, they have short life spans, but breed readily. They feed on spoiled food and garbage, and can spread disease.

bottle fly outside of san antonia texas home

Bottle flies

Bottle flies, or blow flies, are usually a shiny green or blue color. Not only do these flies eat garbage but they also feast on feces and rotting meat. They reproduce quickly and can spread disease from one landing site to the next.

drain fly perched on a dirty surface in san antonio texas basement

Drain flies

Drain flies are also known as sink flies or sewer gnats. They are primarily found in sink drains, garbage disposals, and other damp spots. Distinguishable from other flies, they have a fuzzy, moth-like appearance.

fungus gnat inside of san antonio texas home

Fungus gnats

Fungus gnats are gray, flying insects that thrive in dark, moist soil. This is where they lay their eggs and spend their development period. Once they have matured, they fly off to infest potted house plants. This makes them a nuisance for indoor gardeners.

Are flies and gnats dangerous?

Flies and gnats spread disease and bacteria as they move from one feeding site to the next. This can lead to food contamination and the spread of germs. Flies and gnats can also create a habitat that is conducive to larger pest problems, such as a spider infestation.

Why do I have these pests in my home?

The main reason that flies and gnats enter homes is to take advantage of easy feeding or breeding sites. To discourage these pests from entering, remove and dispose of food waste in a timely manner.

How do I get rid of flies and gnats?

The best way to rid your home of flies and gnats is to call in a professional for treatment. Flying pests can be frustrating to remove, as they tend to make their homes in hard-to-reach places. Family has many proven, successful techniques, guaranteed to eliminate fly and gnat infestations. We also offer many Home Protection Plans that can be modified to fit your needs.

Fly and gnat prevention tips from Family Pest

Regular inspection and spraying for insects inside homes can help discourage a fly or gnat infestation. To help keep insects away from your home here are a few tips.

  • Store garbage in sealed containers outside. 
  • Empty and clean trash bins on a regular basis with a mild bleach or disinfectant solution.
  • Clean sink drains on a regular basis, as food particle build up in sink drains can and will attract fungus flies and fruit flies.


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