New and updated information on Scleroderris canker in the Atlantic Provinces
This note reviews the status of the European race of Scleroderris canker (Gremmeniella abietina [Lagerb.] Morelet), an exotic pest, in the Atlantic Provinces of Canada. The European race of Scleroderris canker is a disease of plant quarantine significance, and many reports have been written since it was initially recognized in New York State in 1975 and subsequently found in Quebec in 1978. The race testing methods have improved in the intervening three decades. This report clarifies the situation for regulatory authorities, the forest industry and provincial officials in New Brunswick, Nova Scotia, Prince Edward Island and Newfoundland. We are also reporting a breach of the quarantine zone of that disease in Newfoundland. A complete listing of isolates tested from New Brunswick and the known distribution for Newfoundland are included as tables and maps.