Pseudomonas solanacearum has never been found on potatoes in Canada
The EPPO Secretariat has recently been informed by the Canadian Plant Protection Service that Pseudomonas solanacearum (EPPO A2 quarantine pest) has never been found on potatoes in Canada. The three published reports concerning this disease in Ontario (see EPPO RS 94/149) relate to other hosts (tomato and pelargonium) and the establishment of the pathogen was not demonstrated. For potato crops, it was stressed that during field surveys carried out in Ontario, and also in Alberta, British Columbia, New Brunswick, Prince Edward Island, the pathogen was never found. The Canadian authorities concluded that P. solanacearum is not established or distributed in Ontario.
Sources
EPPO Secretariat, 1994-10.