In the home, fungus gnats are usually found in potted plants that are overwatered. Call Residential Commercial. Keen Sense of Smell Small flies have a very keen sense of smell and they use odor receptor organs on their antennae and visual clues to detect and fly towards odors produced by their preferred food sources.
Resources Dig Deeper on Gnats. Do Gnats Bite? Black Gnats. Gnat Eggs. Fungus Gnat Life Cycle. The scent of laundry detergent or additives on your clothing will also bring them your way. Body heat and moisture also play a role. Many species of gnats and flies are attracted by body heat. Others are in search of moisture. Not only are they drawn to perspiration, but also the mucous around your eyes and nose that can be a source of moisture.
Your yard can contain a variety of items that entice gnats and flies. Fruit trees, vegetable gardens and flowers all provide a source of food and moisture.
Over-watering your lawn or flowerbeds not only provides moisture, but may also create fungus and molds that are the primary food source for certain types of flying insects such as the fungus gnat.
And your outdoor lighting? Are gnats attracted to light? Gnats are as small as specks of dust and deviously target mouths, eyes, and ears. Remarkably agile, they elude waving hands and always seem to come back to annoy again.
Why do gnats fly in your face? It turns out that many things these insects are drawn to can be found on the human head. A gnat is always searching for moisture and salt, which are found in sweat and tears. Unfortunately, the pests are vectors for pink eye.
They are also drawn to the smell of bad breath and to the carbon dioxide people expel when exhaling. Gnats are fond of certain pleasant smells as well.
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