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Wasp galls on Dog rose

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Description:

Moss-like growths on Rosa canina (not native) that are the plant's response to eggs laid by the Rose Gall Wasp (Diplolepsis rosae). Grubs then develop inside the growth. The wasp, like the plant, is also found in Europe and presumably is also not native to the area.July 13, 2011, Wasatch foothills, Salt Lake County, Utah, approx. 4900 ft. elev.

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Tony Frates
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Tony Frates
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