Cannabis growers often use the insecticide pyrethrins to control pest species and protect their crops. These come from a natural source—flowers of the chrysanthemum plant. Various forms of ...

IT is well known that both light and air rapidly destroy the pyrethrins, therefore to obtain a true picture of the relative persistence of pyrethrins and the gamma isomer of benzene hexachloride as a ...

ANGRY pet owners have called on Coles and Woolworths to stop selling a toxic flea spray after a cat suffered a severe reaction. Exelpet Fleaban, a flea spray for cats and dogs, contains pyrethrins, an ...

Most of us think we’re protecting ourselves from noxious chemicals with half-superstitious gestures: filtering the water we drink a pitcher at a time, or confining ourselves to the organic aisles of ...