Microorganisms which invade Picea abies in seasonal stem wounds.

Wounds were experimentally created on the stems of 55–60 years old Picea abies. Infection, spread, and interrelationship of microorganisms, mainly fungi, were studied after 1, 2, and 4 years. The effect on the invading Hymenomycetes of wounding season, number of years since wounding, tree diameter class, height above ground, size and depth of the wound is discussed.