Two types of small flies occasionally appear in kitchen areas. Several species of fruit flies (also known as pomace or vinegar flies) are common in kitchens. They are from 1/16-1/8 inch (1-3mm) long, yellowish or brownish with black markings, and fairly bristly. The larvae (maggots) develop in decaying vegetable matter, feeding on the yeast and molds which grow on over-ripe fruit or vegetables.

In the home they are found near decaying potatoes, fruits and vegetables, flower bulbs, bread and baked goods containing yeast, beverages (beer, pop and fruit juices), and vinegar. They are also occasionally found in the small quantities of milk, catsup, juice or pop left in empty bottles and in sour dishcloths and mops. Disposal of infested items is strongly suggested to eliminate them. A labeled insecticide spray may be required to eliminate the adults.


A second type of small fly that is frequently encountered in the kitchen area is the moth (drain) fly. These flies are 4-5mm (1/16-1/4 inch) long, grayish, densely hairy and hold their oval wings rooflike over the abdomen. Their flight is weak but they are very agile runners. The larvae of these flies develop in sink traps and other stagnant water.

Thus they are common in laundry tub and basement floor drains, sumps, toilet and shower drains, as well as the kitchen sink (especially if there is a garbage disposal). The larvae feed on sewage and other organic matter that builds up on the inside of drain pipes. Drain Gel works well in this situation.

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