Definitions for "PYRETHRUM"
Any of several aromatic chrysanthmums of genus Tanacetum, esp. T. Coccineum. Also an insecticide made from the dried leaves of these plants, esp. Tanacetum cinerariifolium.
made of dried flower heads of pyrethrum plants
white-flowered pyrethrum of Balkan area whose pinnate leaves are white and silky-hairy below; source of an insecticide; sometimes placed in genus Chrysanthemum
Keywords:  deterrent, pest, natural
A natural pest deterrent.