Research Information — Flies (Blow Flies, Cluster Flies, Common House Flies, Picture Winged Flies, Fruit or Vinegar Flies, Hump Backed Flies, Moth Flies)
Many types of flies invade structures in this region. Most feed on dead or decaying material and, depending on the environment, they can be very difficult to eliminate. The most important step in fly management is the proper identification of the fly and their nesting sites. Since most flies have very short life spans, their goal is to lay as many eggs as they can before they die. Our primary focus is on interrupting the life cycle. Once this cycle has been interrupted, our service professionals can present some helpful tips on preventing re-infestations.
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Quick Facts
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Blow Flies
Cluster Flies
Common House Fly
Winged Fly
Fruit or Vinegar Flies
Hump Backed Flies
Moth Flies
Blow Flies
Color: dark, olive-green body, black legs, and orange pubescence around the mesothoracic spiracles
Size: ranging from 6 to 14 mm in length and generally having a metallic sheen to their bodies.
Feeding & Habits: larvae feed in decaying organic matter, mature larvae of the blow fly, however, have been known to burrow deep into healthy tissue after spending earlier developmental stages in superficial wounds.
Cluster Flies
Color: Non-metallic, light and dark gray areas on abdomen
Size: About 5/16 inch long
Feeding & Habits: Feed on earthworm matter in lawns and ground cover. Adults of the last generation of the year become numerous during the latter days of September to mid-October. As cold weather progresses, adults seek protected places to spend the winter. In many cases, this is within walls, attics, storage rooms, and basements of houses. Screens offer no protection since these flies prefer to crawl in through small openings elsewhere around the building. For this reason they are extremely difficult to keep out of houses. Isolated houses in the country are especially prone to invasion, since they offer the only warm shelter for miles around.
Common House Flies
Color: gray, with four longitudinal dark lines on the back. The underside of their abdomen is yellow, and their whole body is covered with hair
Size: adults are 6-9 mm long
Feeding & Habits: Houseflies can take in only liquid foods. They spit out saliva on solid foods to predigest it, and then suck it back inside. They also regurgitate partly digested matter and pass it again to the abdomen.
Winged Flies
Color: brownish with black vertical stripes on there wings
Size: 6-9 mm long
Feeding & Habits: live in lawns in the summer months feeding decaying materials and earth worm larvae.
Fruit or Vinegar Flies
Color: Usually have red eyes, the front portion of the body is tan and the rear portion is black
Size: Adults are about 1/8 inch long
Feeding & Habits: attracted to ripened fruits and vegetables in the kitchen. But they also will breed in drains, garbage disposals, empty bottles and cans, trash containers, mops and cleaning rags
Humped Back Fly
Color: humped back yellowish-brown
Size: 1/16 to 1/8 inch long
Feeding & Habits: reproduce in moist areas where food and water are present. Eggs are usually laid directly on the decaying material.
Moth Flies
Color: fuzzy, dark or grayish insects with the body and wings densely covered with hairs
Size: tiny (1/5 to 1/6 inch long
Feeding & Habits: Drain flies reproduce in polluted, shallow water or highly moist organic solids. The eggs, larvae and pupae can be found in the muck, slime, or gelatinous film often accumulating on the sides of drains and overflow pipes in homes, or in sewage disposal beds, septic tanks and moist compost.
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