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Fifth report of the United States Entomological Commission, being a revised and enlarged edition of Bulletin no. 7, on insects injurious to forest and shade trees. By Alpheus S. Packard ...
United States Entomological Commission.@@Packard, A. S. (Alpheus Spring), 1839-1905
keywords: Diseases and pests;    Beneficial insects;    Insect pests;    Trees;    Forest insects;   
Subject:植物学
美国
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