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Bottle Fly Fact & Information

Protect your home or business from bottle flies by learning techniques for identification and control.

Bottle fly illustration
Family Calliphoridae
Metallic blue or green
Large size


Types of Bottle Flies

What do bottle flies look like?

Bottle flies, also called blow flies, are common, large flies known for their metallic blue or green color.

What are Green Bottle Flies? | Identify Green Bottle Flies

Green Bottle Fly

Lucilia sericata

What Do Blue Bottle Flies Look Like? | Fly Facts

Blue Bottle Fly

Calliphora vomitoria


How do I get rid of bottle flies?

What Orkin Does

Your local Orkin Pro is trained to help manage bottle flies and similar pests. Since every building or home is different, your Orkin Pro will design a unique fly treatment program for your situation.

Orkin can provide the right solution to keep bottle flies in their place...out of your home, or business.

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Behavior, Diet & Habits

Understanding Bottle Flies

Signs of Infestation

The most common signs of bottle flies are either the adults themselves or their larvae. The adults may be seen resting on surfaces or buzzing around potential food or odor sources. The larvae may be observed when they crawl out of the breeding material to pupate.


Bottle flies are typically found outdoors. If large numbers of the pests are found inside, an indoor breeding site may have been established. To eliminate bottle flies, it is important to implement stringent sanitation measures, which include cleaning garbage containers and making sure that the lids are seated tightly.


Among many other kinds of decomposing organic matter, the following serve as the insects' food source and breeding grounds:

  • Decaying animal flesh

  • Feces

  • Garbage

  • Rotting meat


A female bottle fly can lay in excess of 2,000 eggs in a lifetime. The eggs are pale yellow or gray in color. Resulting larvae measure 9 to 22 mm in length and may hatch within two to three days, depending on temperature. Within two to 10 days, larvae seek pupation sites, from which they eventually emerge as adult flies. Bottle flies breed in damp, organic matter such as dead animals.

Bottle flies are also good pollinators. They often pollinate flowers with strong odors, such as pawpaws and goldenrod. When food sources are diminished, they feed upon the nectar of these flowers in order to produce healthy eggs.

More Information

Blue Bottle Flies in the Home

Green Bottle Flies

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