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841. Peach borer, how to prevent or lessen its ravages; [by Oliver I. Snapp].

Corporate/Agency Authors:: Entomology and Plant Quarantine Bureau, Agricultural Research Administration, and Agriculture Department
Publisher:: Entomology and Plant Quarantine Bureau
Date:: [Oct. 1921, revised Jan. 1940, slightly revised Apr. 1943.] [1943.]
SuDoc number:: A 1.9:1246/4

842. Puceinia graminis. Physiologic races of Puccinia graminis in United States in 1942; [by] E. C. Stakman and W. Q. Loegering.

Corporate/Agency Authors:: Entomology and Plant Quarantine Bureau and Agricultural Research Administration
Publisher:: Entomology and Plant Quarantine Bureau
Date:: Apr. 1943
SuDoc number:: A 77.312:E-522-C

843. Tomato fruitworms. Control of tomato fruitworm, tomato pinworm, tomato russet mite, and hornworms; by Joseph Wilcox and J. C. Elmore.

Corporate/Agency Authors:: Entomology and Plant Quarantine Bureau, Agricultural Research Administration, and Agriculture Department
Publisher:: Entomology and Plant Quarantine Bureau
Date:: Apr. 1943
SuDoc number:: A 77.312:E-589

844. Counting plates for use with low-power magnification; by F. H. Shirck.

Corporate/Agency Authors:: Entomology and Plant Quarantine Bureau, Agricultural Research Administration, and Agriculture Department
Publisher:: Entomology and Plant Quarantine Bureau
Date:: Mar. 1943
SuDoc number:: A 77.313:206

845. Dusters. Suction attachment for removing dust from hopper of wheelbarrow power duster; by C. W. Getzendaner.

Corporate/Agency Authors:: Entomology and Plant Quarantine Bureau, Agricultural Research Administration, and Agriculture Department
Publisher:: Entomology and Plant Quarantine Bureau
Date:: Mar. 1943
SuDoc number:: A 77.313:207

846. European corn borers. Field status of parasites of European corn borer at close of 1941; by Charles A. Clark.

Corporate/Agency Authors:: Entomology and Plant Quarantine Bureau, Agricultural Research Administration, and Agriculture Department
Publisher:: Entomology and Plant Quarantine Bureau
Date:: Mar. 1943
SuDoc number:: A 77.312:E-588

847. Fumigation. Cages used in fumigation tests with adult Japanese beetles, their distribution and recovery; by Heber C. Donohoe.

Corporate/Agency Authors:: Entomology and Plant Quarantine Bureau, Agricultural Research Administration, and Agriculture Department
Publisher:: Entomology and Plant Quarantine Bureau
Date:: Mar. 1943
SuDoc number:: A 77.313:205

848. Mites. Sampling technique for determining populations of citrus red mite and its predators; by Chas. F. Henderson and Horace V. McBurnie.

Corporate/Agency Authors:: Entomology and Plant Quarantine Bureau, Agricultural Research Administration, and Agriculture Department
Publisher:: Entomology and Plant Quarantine Bureau
Date:: Mar. 1943
SuDoc number:: A 1.4/2:671

849. Mountain pine beetle, important enemy of western pines; by James C. Evenden, W. D. Bedard, and G. R. Struble.

Corporate/Agency Authors:: Entomology and Plant Quarantine Bureau, Agricultural Research Administration, and Agriculture Department
Publisher:: Entomology and Plant Quarantine Bureau
Date:: Mar. 1943
SuDoc number:: A 1.4/2:664

850. Screwworm flies. Toxicity of certain organic compounds to young screwworm larvae [with list of literature cited; by] Roy Melvin, Raymond C. Bushland, and Charles L. Smith.

Corporate/Agency Authors:: Entomology and Plant Quarantine Bureau, Agricultural Research Administration, and Agriculture Department
Publisher:: Entomology and Plant Quarantine Bureau
Date:: Mar. 1943
SuDoc number:: A 77.312:E-586

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