Winchester Pest Control
Winchester Pest Control

Winchester Pest Control

 Integrated Pest Management

 Telephone - 781-729-1893

Blow / Bottle Fly
There are about 80 species of these flies throughout the United States. Adult blow / bottle flies range from 1/8" to 5/8" long, they can vary with metallic blue & green & brass colorings and they have large eyes. These flies are usually the first insect to arrive on an animal after it dies. The presence of larvae is often used by forensic entomologists to help determine the time of death.

Adult female flies lay their eggs on suitable larval food material. Because of the several different species their biology can differ; from quantity in numbers, to time needed for egg laying, through the developmental changing to adult, but these differences remain within the normal quantities & time periods of most other fly species.

They may easily infect human food sources because they readily develop in meat or animal carcasses, and if not available sewage, garbage or animal excrement will be used. Outside these flies are most active on warm sunny days, resting on cool and/or cloudy days. Indoors they are attracted to the sunlight coming through windows, and potential food sources can be from the presence of any decaying garbage, dead rodents in wall voids, dead birds, or other small animals.