. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. Fig. 1.—Cover Crop of Vetch in Vineyard of Mr. Pa. (Original.) John Higgins, North East,. Fig. 2.—Cover Crop of Turnips in Vineyard of Mottier Bros., North East, Pa. Vineyard Badly Infested by Grape Leafhopper, which was Effec- tively Treated with Blackleaf Tobacco-Extract Spray. 'Original.). 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 Uni

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. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. Fig. 1.—Cover Crop of Vetch in Vineyard of Mr. Pa. (Original.) John Higgins, North East,. Fig. 2.—Cover Crop of Turnips in Vineyard of Mottier Bros., North East, Pa. Vineyard Badly Infested by Grape Leafhopper, which was Effec- tively Treated with Blackleaf Tobacco-Extract Spray. 'Original.). 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 United States. Bureau of Entomology. Washington : G. P. O.

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Keywords: ., bookcentury1900, bookdecade1900, booksubje, booksubjectentomology