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Start Over You searched for: Author Entomology and Plant Quarantine Bureau Remove constraint Author: Entomology and Plant Quarantine Bureau Catalog Issue Year Decade 1940 - 1949 Remove constraint Catalog Issue Year Decade: 1940 - 1949 Sudoc Stem A 77.320 Remove constraint Sudoc Stem: A 77.320

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4. Boll weevil [life history and control].

5. Bollworm [life history and control].

6. Cotton aphid [life history and control].

10. European corn borer [life history and control].