Tag Archives: Eutreta diana

Old Sagebrush Stem Gall

This gallery contains 5 photos.

The stem gall tephritid fruit fly (Eutreta diana) causes galls to form on tall sagebrush (Artemesia tridentata) following oviposition of a single egg in its axillary or terminal buds. In my last post (“Sagebrush Stem Gall”) I noted that the … Continue reading

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Sagebrush Stem Gall

This gallery contains 6 photos.

The other day I wandered through some tall sagebrush (Artemisia tridentata) on our property (Lookout CA) looking for sagebrush galls. Artemisia species are galled by many species of midges,  tephritid fruit flies and a eriophyid mite. Tall sagebrush (also called … Continue reading

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