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A history of the gypsy moth infestation in Pennsylvania--1932-1949


Author:
Hanley, W. H., United States. Bureau of Entomology and Plant Quarantine, and Pennsylvania. Department of Agriculture
Year:
1950
Subject:
Gypsy moth -- Control -- Pennsylvania
Format:
1 online resource (11-A pages)
Publisher:
United States Department of Agriculture, Agricultural Research Administration, Bureau of Entomology and Plant Quarantine, cooperating with Pennsylvania Department of Agriculture
Collection:
USDA publications