One of the oldest pesticides known, pyrethrum is also the strongest insecticide allowed under National Organic Standards guidelines. Made from the dried flowers of a little white daisy now classified ...

Q: You have written before that you don't need toxic pesticides to control bedbugs. Can you elaborate on that, please? There was a recent story in the paper about the resurgence of bedbugs in society.

Pyrethroid insecticides account for approximately one-fourth of the worldwide insecticide market. They have been widely used in wood preservation, impregnation of wool carpets and textiles, ...