New distribution list for potato spindle tuber viroid
Due to the recent finding of potato spindle tuber viroid (EPPO A2 organism) in Egypt the distribution list has to be changed accordingly:
EPPO Distribution List: Potato spindle tuber viroid
EPPO region: Egypt, Poland, Turkey, USSR.
Asia: China, India, Japan, Turkey.
Africa: South Africa.
North America: Canada, but reported absent from seed potato crops in New Brunswick (Singh & Crowley, 1985a) and Prince Edward Island (Singh _et al_., 1988a), USA.
South America: The first edition of the EPPO data sheet on PSTVd cited the viroid as widespread in South America. There are unconfirmed records for Argentina and Brazil and the situation in other countries remains uncertain.
This distribution list replaces all previously published EPPO distribution lists for potato spindle tuber viroid.
Sources
EPPO Secretariat, Paris (1992-08)