Most homes and businesses eventually experience problems with indoor flies. Flies are one of the largest groups of insects. Unlike most other winged insects, which have four wings, flies have only two.
Smaller house-infesting flies include drain flies, fruit flies, phorid flies, and fungus gnats. Larger flies, such as blow flies and flesh flies, occasionally invade homes to lay eggs on a decaying carcass. These flies rarely infest homes for long.
House flies and mosquitoes rarely breed inside structures; however, they readily take advantage of open doors or unscreened windows to get indoors for food or shelter. Insecticides alone are rarely successful in eliminating indoor fly infestations. Fly control is most effective when breeding sites in the structure are identified and eliminated. Because each type of indoor fly prefers slightly different breeding sites, identifying the fly should be the first step in any control effort.
Small house-infesting flies are generally less than 1/8 inch (4 mm) long as adults. All of the following flies are capable of breeding and living entirely indoors. These flies, however, are also found outdoors and may enter through open windows or doors. Fruit flies’ infestations are most frequent during the summer.
Fruit flies are sometimes referred to as vinegar or pomace flies because they are attracted to vinegar and almost any decaying fruit.
These flies will breed in almost any fermenting fruit or vegetable. They are also commonly found…