Author: Entomology and Plant Quarantine Bureau / Publisher: Entomology and Plant Quarantine Bureau - Blacklight Search Results

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1571. Pea aphids. Progress report on pea aphid control in Wisconsin; by H. F. Wilson and C. E. Deeter.

Corporate/Agency Authors:: Entomology and Plant Quarantine Bureau and Agriculture Department
Publisher:: Entomology and Plant Quarantine Bureau
Date:: [1939.]
SuDoc number:: A 56.2:P 32/7

1572. Pea aphids. Suggestions for pea aphid control for season of 1939; prepared by group of entomologists representing number of State experiment stations and Bureau of Entomology and Plant Quarantine.

Corporate/Agency Authors:: Entomology and Plant Quarantine Bureau and Agriculture Department
Publisher:: Entomology and Plant Quarantine Bureau
Date:: Jan. 1, 1939
SuDoc number:: A 56.2:P 32/4

1573. Pests. Review of United States patents relating to pest control, by R. C. Roark, v. 11, no. 12; Dec. 1938.

Corporate/Agency Authors:: Entomology and Plant Quarantine Bureau and Agriculture Department
Publisher:: Entomology and Plant Quarantine Bureau
Date:: [1939.]
SuDoc number:: A 56.17:11/12

1574. Pests. Review of United States patents relating to pest control, by R. C. Roark, v. 12, no. 10; Oct. 1939.

Corporate/Agency Authors:: Entomology and Plant Quarantine Bureau and Agriculture Department
Publisher:: Entomology and Plant Quarantine Bureau
Date:: [1939.]
SuDoc number:: A 56.17:12/10

1575. Pests. Review of United States patents relating to pest control, by R. C. Roark, v. 12, no. 11; Nov. 1939.

Corporate/Agency Authors:: Entomology and Plant Quarantine Bureau and Agriculture Department
Publisher:: Entomology and Plant Quarantine Bureau
Date:: [1939.]
SuDoc number:: A 56.17:12/11

1576. Pests. Review of United States patents relating to pest control, by R. C. Roark, v. 12, no. 1; Jan. 1939.

Corporate/Agency Authors:: Entomology and Plant Quarantine Bureau and Agriculture Department
Publisher:: Entomology and Plant Quarantine Bureau
Date:: [1939.]
SuDoc number:: A 56.17:12/1

1577. Pests. Review of United States patents relating to pest control, by R. C. Roark, v. 12, no. 2; Feb. 1939.

Corporate/Agency Authors:: Entomology and Plant Quarantine Bureau and Agriculture Department
Publisher:: Entomology and Plant Quarantine Bureau
Date:: [1939.]
SuDoc number:: A 56.17:12/2

1578. Pests. Review of United States patents relating to pest control, by R. C. Roark, v. 12, no. 3; Mar. 1939.

Corporate/Agency Authors:: Entomology and Plant Quarantine Bureau and Agriculture Department
Publisher:: Entomology and Plant Quarantine Bureau
Date:: [1939.]
SuDoc number:: A 56.17:12/3

1579. Pests. Review of United States patents relating to pest control, by R. C. Roark, v. 12, no. 4; Apr. 1939.

Corporate/Agency Authors:: Entomology and Plant Quarantine Bureau and Agriculture Department
Publisher:: Entomology and Plant Quarantine Bureau
Date:: [1939.]
SuDoc number:: A 56.17:12/4

1580. Pests. Review of United States patents relating to pest control, by R. C. Roark, v. 12, no. 5; May 1939.

Corporate/Agency Authors:: Entomology and Plant Quarantine Bureau and Agriculture Department
Publisher:: Entomology and Plant Quarantine Bureau
Date:: [1939.]
SuDoc number:: A 56.17:12/5

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