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Subjects
Agricultural pests, Apple aphid, Apples, Diseases and pestsEdition | Availability |
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Book Details
Table of Contents
Introduction. pp. 1.
Aphides in general. pp. 2.
The European grain aphis. pp. 3.
The apple aphid. pp. 5.
The rosy apple aphis. pp. 7.
Methods of control. pp. 9.
Edition Notes
Caption title.
Circular No. 81.
"Issued March 9, 1907."
At head of title: United States Department of Agriculture, Bureau of Entomology.
The Physical Object
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July 25, 2014 | Created by ImportBot | import new book |