. Bulletin of the Department of Agriculture. Agriculture; Agriculture. Bui. 924, U. S. Dept. of Agriculture. Plate I!. Fig. I.—Damage to Grapefruit by Rust Mites. Dark tear stains are found frequently on areas more or less russeted by rust mites, especially where" the applications of rust-mite sprays were delayed. For all practical purposes, both tear-stain and russeting are. absent from fruit kept free from rust mites. Note the zone of faint Fig. 2.—The Work of Rust Mites on Grapefruit Sprayed in June with Bordeaux Mixture. In the zone of rust-mite activity injury is confin
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. Bui. 924, U. S. Dept. of Agriculture. Plate I!. Fig. I.—Damage to Grapefruit by Rust Mites. Dark tear stains are found frequently on areas more or less russeted by rust mites, especially where" the applications of rust-mite sprays were delayed. For all practical purposes, both tear-stain and russeting are. absent from fruit kept free from rust mites. Note the zone of faint Fig. 2.—The Work of Rust Mites on Grapefruit Sprayed in June with Bordeaux Mixture. In the zone of rust-mite activity injury is confined to the area not covered with spray. Near-by grapefruit trees sprayed on the same date with lime-sulphur solution (1-66) matured fruit entirely free from russeting or 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. Dept. of Agriculture. [Washington, D. C. ?] : The Dept. : Supt. of Docs. , G. P. O.
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