. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. Jul. 51, Bureau of Entomology, U. S. Dept. of Agriculture. Plate Effects of Weevil Feeding Upon Bolls. Fig. 36, Small boll showing 13 feeding punctures; fig. 37, section of medium-sized injured boll o. Feeding puncture closed by woody growth; b, gelatinized area resulting from feeding punc tures; fig. 38, boll having two locks destroyed by two feeding punctures made by a male weevil fig. 39, device used to test relative attractiveness of American and Egyptian squares—figs. 36, 38. reduced to three-fourths na

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. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. Jul. 51, Bureau of Entomology, U. S. Dept. of Agriculture. Plate Effects of Weevil Feeding Upon Bolls. Fig. 36, Small boll showing 13 feeding punctures; fig. 37, section of medium-sized injured boll o. Feeding puncture closed by woody growth; b, gelatinized area resulting from feeding punc tures; fig. 38, boll having two locks destroyed by two feeding punctures made by a male weevil fig. 39, device used to test relative attractiveness of American and Egyptian squares—figs. 36, 38. reduced to three-fourths natural diameter: fig. 39, one-fourth natural diameter (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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