ISHS Acta Horticulturae 1232: VII International Symposium on Rose Research and Cultivation
Rose rosette disease: it all started with a small mite |
| Authors: | G.B. Bauchan, G. Otero-Colina, J. Hammond, R. Jordan, R. Ochoa |
| Keywords: | eriophyid mite, Phyllocoptes, Emaravirus, light microscopy, table top scanning electron microscopy, low-temperature scanning electron microscopy |
| DOI: | 10.17660/ActaHortic.2019.1232.33 |
| Abstract:
A small eriophyid mite, Phyllocoptes fructiphilus, has been shown to be the vector for an Emaravirus, Rose rosette virus, the causal agent of Rose rosette disease (RRD). Studies are being conducted of mites on roses by various microscopy techniques including wide field, table top scanning electron microscopy and low temperature scanning electron microscopy. All cultivars which came from virus infected areas have been found to be infested with P. fructiphilus. Mites are primarily found on enclosed petioles/scales of vegetative buds and inside the flower sepals appressed to the ovary/seeds. Mites appear to be hiding amongst dense simple and bulbous, glandular hairs (trichomes). The mites also overwinter in these same locations. In addition, predatory mites were found associated with these mites that may be useful as biological control agents of the eriophyid mites. | |
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