Relationship of insects to the spread of azalea flower spot / by Floyd F. Smith and Freeman Weiss.

By: Contributor(s): Material type: TextTextSeries: Technical bulletin (United States. Department of Agriculture) ; no. 798.Publication details: Washington : U.S. Dept. of Agriculture, 1942.Description: 44 p. : ill. ; 23 cmSubject(s): DDC classification:
  • 632.7
LOC classification:
  • SB608.A9 S5
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Cover title.

Joint contribution from Bureau of Entomology and Plant Quarantine and Bureau of Plant Industry.

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