. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. 51, Bureau of Entomology, U. S. Dept. of Agriculture. Plate Effects of Weevil Feeding Upon Bolls. Fig. 36, Small boll showing 13 feeding punctures; fij;. 37, section of medium-sized injured boll: a, Feeding puncture closed by woody growtfi: b, gelatinized area resulting from feeding punc- tures; tig. 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. 51, Bureau of Entomology, U. S. Dept. of Agriculture. Plate Effects of Weevil Feeding Upon Bolls. Fig. 36, Small boll showing 13 feeding punctures; fij;. 37, section of medium-sized injured boll: a, Feeding puncture closed by woody growtfi: b, gelatinized area resulting from feeding punc- tures; tig. 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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