Ascomycetbus fungi of Siberia. 1. Delphinella balsameae - The causal agent of the shoot blight of Siberian fir [Russian]

摘要

Delphinella balsameae, the causal agent of the shoot blight of Siberian fir is found in Russia for the first time. It was previously known only from the north-eastern regions of North America. Disease symptoms observed in the infected trees and the description of this fungus are given.