Spruce budworm defoliation causes continued top killing and tree mortality in northeastern Minnesota /
Main Authors: | , |
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Format: | Government Document Book |
Language: | English |
Published: |
[St. Paul, MN] :
Lake States Forest Experiment Station,
[1962]
|
Series: | Technical notes (Lake States Forest Experiment Station (Saint Paul, Minn.) ;
no. 621 |
Subjects: |