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Start Over You searched for: Author Entomology and Plant Quarantine Bureau Remove constraint Author: Entomology and Plant Quarantine Bureau Publish Year Decade 1940 - 1949 Remove constraint Publish Year Decade: 1940 - 1949

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613. Insects. More important insect records, Sept. 1942.

614. Rotenone. Review of insecticidal uses of rotcnone and rotenoids from Derris Lonchocarpus (cube and Umbo), Tephrosia, and related plants: pt. 1, Collembola, Orthoptera, Dermaptera, Odonata, Isoptera, Corrodcntia, and Mallophaga [with list of literature cited]; by R. C. Roark.

617. Insects. More important insect records, Aug. 1942.