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Caption: Little house fly

Photo by: Susan Ellis, Bugwood.org

Little house flies

(revision date: 7/14/2015)

Use Integrated Pest Management (IPM) for successful pest management.

Biology

The little house fly, sometimes called the lesser house fly, is a nuisance pest. The small male flies (1/8 to 3/16 inch long) are often found in houses, however, females are rarely found indoors. Little house flies are nothing more than a nuisance because they fly around in jerky, zigzag, aimless flight in rooms and shaded entry ways. The little house fly breeds in animal dung and decaying plant material. The larvae are well adapted to move about in putrid, semi-liquid organic material.

Management Options

Non-Chemical Management

Do not provide good breeding sites.
Do not place or compost vegetation waste near doorways or entries.
Do not allow pet manure to accumulate in the yard.
Fly traps (available commercially) can assist in keeping numbers down, particularly if you can’t control nearby breeding sites.
Do not use “zapper” traps outdoors since they kill more beneficial insects than pest insects. However, they are useful indoors.
Maintain tight-fitting window and door screens.

Select non-chemical management options as your first choice!

Chemical Management

IMPORTANT: Visit Home and Garden Fact Sheets for more information on using pesticides

None recommended.

Images

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Caption: Little house fly Photo by: Susan Ellis, Bugwood.org

WSU Extension

Pestsense