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981. Potato leafhopper and its control; [by J. E. Dudley, jr.].

Corporate/Agency Authors:: Entomology Bureau and Agriculture Department
Publisher:: Entomology Bureau
Date:: [Aug. 1921, reprint Apr. 1922.]

982. Potatoes. How to increase potato crop by spraying; [by] F. H. Chittenden and W. A. Orton.

Corporate/Agency Authors:: Entomology Bureau and Agriculture Department
Publisher:: Entomology Bureau
Date:: [Sept. 1917, revised Jan. 1920, reprint Apr. 1922.]

983. Roundheaded apple-tree borer; [by Fred E. Brooks].

Corporate/Agency Authors:: Entomology Bureau and Agriculture Department
Publisher:: Entomology Bureau
Date:: [July 6, 1915, revised Aug. 1919, reprint Apr. 1922.]

984. San Jose scale and its control; [by A. L. Quaintance].

Corporate/Agency Authors:: Entomology Bureau and Agriculture Department
Publisher:: Entomology Bureau
Date:: [Mar. 30, 1915, revised Oct. 1919, reprint Apr. 1922.]

985. Woolly white fly in Florida citrus groves; [by W. W. Yothers].

Corporate/Agency Authors:: Entomology Bureau and Agriculture Department
Publisher:: Entomology Bureau
Date:: [Feb. 1919, reprint Apr. 1922.]

986. Apanteles melanoscelus, imported parasite of gipsy moth; by S. S. Crossman.

Corporate/Agency Authors:: Entomology Bureau and Agriculture Department
Publisher:: Entomology Bureau
Date:: Mar. 13, 1922

987. Apple-tree tent caterpillar; [by] A. L. Quaintance.

Corporate/Agency Authors:: Entomology Bureau and Agriculture Department
Publisher:: Entomology Bureau
Date:: [1915, reprint with changes Mar.] 1922

988. Bees. Occurrence of diseases of adult bees [with list of literature cited; by] E. F. Phillips.

Corporate/Agency Authors:: Entomology Bureau and Agriculture Department
Publisher:: Entomology Bureau
Date:: Mar. 1922

989. Bees. Wintering bees in cellars; [by] E. F. Phillips and George S. Demuth.

Corporate/Agency Authors:: Entomology Bureau and Agriculture Department
Publisher:: Entomology Bureau
Date:: [Sept. 1918, reprint with omissions Mar.] 1922

990. Mesquite. Protection of mesquite cordwood and posts from borers; [by F. C. Craighead and George Hofer].

Corporate/Agency Authors:: Entomology Bureau and Agriculture Department
Publisher:: Entomology Bureau
Date:: [May, 1921, reprint Mar. 1922.]

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