Fungi dangerous at Pinus contorta with special reference to pathogens from North Europe

Abstract

Examples arc t;ivcii ol North American funt;i poiciuially d.iiii;cious lo Finns coutorta plantations in northern Europe. The pathogenicity of North European fungi i.s discussed. P. contorta was found to be immune or nearly immune to all European rust funj;i, more resistant than P. sylvcslris to Phacidiiim injcstans and Lophodcrniiiim pmastri, but less resistant to Crumctiidopsis sororia and Discclla strobilina. For other fungi no such clearcut conclusions could be drawn.