Blow and Bottle Flies - Maheu&Maheu

Blow and Bottle Flies Flies

Elimination

When there are meat flies in the house, it is essential to locate and eliminate the source of the problem, often related to the presence of decaying organic matter. Careful housekeeping usually prevents adults from finding other oviposition sites inside.

If a large number of flies is observed, it is recommended to eliminate them using physical methods such as Maheu&Maheu GlueTraps or by increasing the aeration and cleanliness of the area.

Outside, if you notice a strong presence of flies near your residence, pay attention to your landscaping. Some plants emit volatile compounds that mimic the smell of decaying organic matter (not noticeable to humans), which attracts flies for pollination. It is then advisable to relocate these plants away from the house.

Actions

Find and dispose of decomposing matter
Request assistance from one of our pest management experts

Prevention

Empty and clean garbage cans regularly
Make sure your bug screens are in good condition

Description and development

Blow and bottle flies are diptera in the Calliphoridae family. There are nearly 80 species in North America, but the most common are the blue bottle fly and green bottle fly. They can be easily recognized by the metallic sheen on their body. Blow and bottle flies grow to an average of 4 to 16 mm long.

Blow and bottles flies primarily lay their eggs on animal carcasses, but they may also lay them on other decomposing organic manner found in garbage. After a few hours, the eggs hatch and the larvae burrow into the carcass and live off the decaying flesh. When a larva matures, it moves away from its food source to make a pupa (cocoon). Eventually the metamorphosis is complete and the adult fly emerges from the pupa. Depending on the species, the life cycle (from egg to adult) takes two to three weeks in the right environmental conditions.

Habits

When these flies develop indoors, it generally indicates a dead animal in the vicinity—for instance, maybe a rodent has died in the walls of the building from the use of a rodenticide. All it takes is one fertilized female to lay her eggs in a carcass, and a few weeks later a hundred flies emerge. These flies can detect an ideal laying site from a few kilometers away. Adults are strongly attracted to ultraviolet light and often live on pollen and nectar. Like many species of fly, these flies are significant vectors of disease.

Tips

If you have used a rodenticide inside your home, consider removing it if possible. An animal could eat the product and die, rotting inside your home and becoming an ideal egg-laying site for blow and bottle flies. Despite claims to the contrary, there are no products on the market that can dry out an animal without any odor.

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