![]() ![]() Infestations can originate from over-ripened fruits or vegetables that were previously infested and brought into the home. All that is needed for development is a moist film of fermenting material. But they also will breed in drains, garbage disposals, empty bottles and cans, trash containers, mops and cleaning rags. The entire lifecycle from egg to adult can be completed in about a week.įruit flies are especially attracted to ripened fruits and vegetables in the kitchen. The reproductive potential of fruit flies is enormous given the opportunity, they will lay about 500 eggs. This surface-feeding characteristic of the larvae is significant in that damaged or over-ripened portions of fruits and vegetables can be cut away without having to discard the remainder for fear of retaining any developing larvae. Upon emerging, the tiny larvae continue to feed near the surface of the fermenting mass. Fruit flies lay their eggs near the surface of fermenting foods or other moist, organic materials. The front portion of the body is tan and the rear portion is black. ![]() Adults are about 1/8 inch long and usually have red eyes. ![]() Biology and Behaviorįruit flies are common in homes, restaurants, supermarkets and wherever else food is allowed to rot and ferment. This fact sheet will explain how infestations originate and how they can be prevented in your home or place of business. Fruit flies are also attracted to rotting bananas, potatoes, onions and other unrefrigerated produce purchased at the grocery store. Tomatoes, melons, squash, grapes and other perishable items brought in from the garden are often the cause of an infestation developing indoors. Fruit flies can be a problem year round, but are especially common during late summer/fall because they are attracted to ripened or fermenting fruits and vegetables. If you have been seeing small flies or gnats in your kitchen, they're probably fruit flies. ![]()
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