Galls, Diseases, and Pests - Fruit Fly Gall
Trupanea signata
Trupanea signata
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The Trupanea signata Fruit Fly generally feeds only on cudweeds, laying its eggs in the plant's buds. As the larvae grow, they eat the insides of the stems, which helps form the plant gall. The insect sheaths visible in some of the photos are the exuviae or exoskeletons of insects that have moulted.
