How to Manage Pests

Pests in Gardens and Landscapes

Seasonal development and life cycle—Fruit fly

Adult fruit flies are attracted to all kinds of overripe fruit. They lay large numbers of eggs on fruit, and the larvae feed on the fruit. The females lay a maximum of 26 eggs per day or 500 to 700 eggs in a 25- to 30-day life span. Fruit flies are active during periods of warm weather; single generations may develop in less than a week when temperatures are between 80° and 89° F. A cycle may take 70 days during the winter. Temperatures above 105° F kill adults in a few minutes.

Fruit fly larvae
Fruit fly larvae on strawberry

Fruit fly pupa
Fruit fly pupa


Statewide IPM Program, Agriculture and Natural Resources, University of California
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