Phyllocoptes fructiphilus

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Phyllocoptes fructiphilus (click on image to enlarge it)
Author(s): West Virginia University Anatomy Department
Sources: IPM images no. 0002057 and no. 0002056

Phyllocoptes fructiphilus Keifer, 1940

This mite is a pest of roses and an important vector of the Rose rosette emaravirus in North America. It is around 150 µm long and about 40 µm wide. P. fructiphilus was originally described from California, but has been later also reported from eastern parts of the U.S. It is of quarantine concern in other parts of the world.

The mite lives and feeds on the developing shoots, buds and flowers. It can spread by wind or is transported by humans on contaminated plants or clothes. There are several generations per year and females of the last generation overwinter under the bark. P. fructiphilus can be also very common on the invasive weed Rosa multiflora and has been even regarded as a possible biocontrol agent (e.g. Smith et al., 2010).