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The bark beetle‐associated blue‐stain fungus Ophiostoma polonicum can kill various spruces and Douglas fir
Author(s) -
Christiansen E.,
Solheim H.
Publication year - 1990
Publication title -
european journal of forest pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.535
H-Index - 49
eISSN - 1439-0329
pISSN - 0300-1237
DOI - 10.1111/j.1439-0329.1990.tb01159.x
Subject(s) - bark beetle , ophiostoma , botany , abies lasiocarpa , fungus , biology , bark (sound) , phloem , pinus contorta , inoculation , douglas fir , horticulture , ecology , twig
In a field experiment in southernmost Norway four young trees of each of eight coniferous species were subjected to artificial inoculation with the pathogenic blue‐stain fungus Ophiostoma polonicum , associated with the spruce bark beetle Ips typographic A dose previously known to Be lethal to most Norway spruce trees also killed individuals of Sitka, white, and black spruce, and Douglas fir. All Scots and lodgepole pines, and subalpine firs survived the given load of infection. Douglas fir did not exhibit the induced resinous defence reaction seen in spruce and pine. The fungus did not proliferate in the phloem of Douglas fir, but spread more easily in a tangential direction in the sapwood of this species than in spruce.