Final results of the 2000 survey on plum pox potyvirus in Canada
As reported in EPPO RS 2000/131, plum pox potyvirus (PPV - EPPO A2 quarantine pest) has been found for the first time in June 2000 near Niagara-on-the-Lake, Ontario, Canada. A survey was initiated to determine the extent of the disease in Canada. Sampling was conducted in Ontario, Québec, British Columbia and Nova Scotia. As of 2000-11-14, 112,250 samples have been tested and 948 positive samples were found. In Ontario, PPV was detected in 947 samples collected from 57 sites (53 in the Niagara Peninsula, 2 near Blenheim, 1 near Simcoe and 1 near Fonthill). In Nova Scotia, PPV was detected in one sample (out of 1377 tested for that Province) corresponding to one sampling site in the Annapolis Valley. PPV was not detected in British Columbia and Québec. It is now felt that the origin of this outbreak has been traced to a nursery in Niagara-on-the-Lake.
The situation of plum pox potyvirus in Canada can be described as: Present: only in some areas (Ontario, 1 finding in Nova Scotia), under eradication.
CFIA Plum pox virus survey update - November 14, 2000.
ProMED posting of 2001-01-03. Plum pox potyvirus, source - Canada.