Canadian Forest Service Publications
Agricultural and forest stakeholders: on the alert! Emergence of a new strain of white pine blister rust. 2013. Tanguay, P. NRCan, CFS, Laurentian Forestry Centre, Québec, Que. Branching out from the Canadian Forest Service, Laurentian Forestry Centre. No. 80. 2 p.
Issued by: Laurentian Forestry Centre
Catalog ID: 34564
Series: Branching Out (LFC - Québec)
CFS Availability: PDF (download)
White pine blister rust, caused by the exotic fungus Cronartium ribicola, has been present in North America since the early 20th century. This pathogenic fungus spends part of its life cycle on Ribes (black currants, red currants or gooseberries), before attacking and killing white pine. Now, a new strain of the disease has recently been discovered in northeastern North America. Should agricultural and forest stakeholders be concerned about this new development?
Plain Language Summary
This publication reports on research work related to a new race of fungus responsible for white pine blister rust.
This new race, resulting from mutation, turned up in the state of Connecticut on rust immune black currant cultivars. In black currant plants, the fungus may cause early defoliation and reduced fruit production. White pine plantations and natural white pine forests located nearby could experience increased infection and mortality rates.
Branching Out is a series of plain language fact sheets describing Laurentian Forestry Centre research projects.
Also available under the title:
Monde agricole et forestier : aux aguets! L’éclaircie du Service canadien des forêts, Centre de foresterie des Laurentides. No 80. (French)