Henry,
Do a scientific search for the papers by Kaminska et al. who have written very, very much about the phytoplasmas in Europe and be sure to see the paper about rose disease in a greenhouse in Poland . Of the Kaminska papers I was able to download, all found phytoplasmas and none reported finding any viruses.

There are also two papers about some sick roses in a bed in China that the authors tied to Pawlonia phytoplasma in a tree adjacent to the infected rose garden.

Ann

Ann I am familar with the rose phytoplasmas litererature including the Chinese (and including the 2010 U.S. paper which I posted in this forum).

http://forums2.gardenweb.com/forums/load/roses/msg0421561629709.html

I started the present thread for information purposes. Someone is still claiming that rose rosette virus is not a virus but a phytoplasma.

Here is a link that might be useful: link to earlier thread that reported that RRD was a phytoplasma.