Browsing Retrospective theses by Subject "Paper birch Ontario Thunder Bay"
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Study of Chondrostereum purpureum and its role in the decline of white birch in Thunder Bay / by John A. McLaughlin (1990)Various aspects of the biology of Chondrostereum purpureum (Pers.:Fr.) Pouz. and its role in dieback and decline of white birch (Betula papyrifera Marsh.) were studied. (1) Sixty-nine trees which exhibited symptoms ...