Sökning: "Petra Bark"

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  1. 1. Ips typographus and other bark and wood-boring beetles in girdled spruces

    L3-uppsats, SLU/Dept. of Ecology

    Författare :Petra Svensson; [2008]
    Nyckelord :girdle; spruce; Picea abies; spruce bark beetle; Ips typographus; woodpecker; bark and wood-boring beetles; Scolytidae;

    Sammanfattning : To decrease the number of spruce trees and to create dead wood in some areas several county administration boards have girdled spruces. Girdled spruces have been little studied in terms of the insect fauna. LÄS MER