Flies
Drain Fly
| Appearance |
|---|
 Hairy or fuzzy, resembling a tiny moth; black or brown. About 1/4-inch. |
| Habitat |
| Drain flies breed in heavily decaying organic matter that remains fairly wet. They are commonly found in sewage treatment facilities. In other commercial buildings, they are often seen in restrooms, mop closets, and boiler rooms. Drain flies can breed in drain traps, sump pumps, and poorly maintained wet areas. Drain flies are weak fliers and are usually seen crawling on walls or other surfaces indoors. When they do fly, it is typically only for a few feet in short, jerky movements. |
| Diet |
| Heavily decaying organic matter, such as sewage sludge, is their preferred food source. |
| Control |
| Finding and eliminating breeding sites is key to controlling drain flies. Inspections should focus on areas where wet organic matter has accumulated, including slimy drains, dirty garbage cans, bird baths or feeders, clogged roof gutters, moist compost, and septic tanks. For prevention, regularly clean drains using appropriate drain cleaners or bacterial drain cleaning products. |
