A NEW CERATOCYSTIS AND ITS VERTICICLADIELLA IMPERFECT STATE ASSOCIATED WITH THE BARK BEETLE DRYOCOETES CONFUSUS ON ABIES LASIOCARPA

Abstract

A new Ceratocystis and its Verticicladiella conidial state are described and illustrated. This fungus has been frequently isolated from necrotic lesions associated with attacks by the bark beetle Dryocoetes confusus on Abies lasiocarpa, and is believed to be an important pathogen.