Rotenone

Rotenone is derived from the root of various plants of the Derris or Lonchocarpus species from Southeast Asia and Central and South America. Rotenone is a broad spectrum botanical insecticide with expected activity against a broad range of pests: codling moth, plum curculio, European apple sawfly, apple maggot, pear psylla, European red mite and two-spotted spider mite, Japanese beetle, and tarnished plant bug. Rotenone is nontoxic to syrphid flies that feed on aphids, and to honeybees. Due to the fact that rotenone is rapidly degraded by sunlight it needs to be reapplied frequently (every week or less). Rotenone is also highly toxic to fish and birds.