. Agricultural entomology for students, farmers, fruit-growers and gardeners. Insects; Beneficial insects; Insect pests. Fig. so.—The corn-root aphis (Aphis maidi-radicis): winged female. Much enlarged. (Webster, Div. Ent., U. S. Dept. Ag.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Osborn, Herbert, 1856-1954. Philadelphia ; New York : Lea & Febiger

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Keywords: ., bookcentury1900, bookdecade1910, booksubjectb, booksubjectinsects