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The adulteration of insect powder with powdered daisy flowers (Chrysanthemum leucanthemum L.) /

By R. C. (Ruric Creegan) Roark and 1886- George Lawrence Keenan


no.795 (1919

Topics: Daisies, Insecticides, Pyrethrum (Insecticide)
Publisher: Washington, D.C. :U.S. Dept. of Agriculture,1919.
Year: 1919
DOI identifier: 10.5962/bhl.title.108771
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