A PRELIMINARY REPORT ON DETERIORATION IN THE WESTERN HEMLOCK-DOUGLAS FIR TYPE ON LOWER VANCOUVER ISLAND FOLLOWING ATTACK BY THE WESTERN HEMLOCK LOOPER (LAMBDINA F. LUGUBROSA) (Lepidoptera, Geometridae)
Forestry Chronicle - Canada
doi 10.5558/tfc25202-3
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Date
September 1, 1949
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Canadian Institute of Forestry