Pyrethrum, also known as Dalmatian (or, inaccurately, Persian) insect powder, represents the dried flowers of the daisylike herbaceous perennial Tanacetum http://www.hjagrifeed.com/botanical-pesticide-additives/pyrethrum-extract.html
Pyrethrum, also known as Dalmatian (or, inaccurately, Persian) insect powder, represents the dried flowers of the daisylike herbaceous perennial Tanacetum http://www.hjagrifeed.com/botanical-pesticide-additives/pyrethrum-extract.html