Derris

Derris is a climbing leguminous plant of Southeast Asia and the southwest Pacific islands, including New Guinea. Its roots contain rotenone, a strong insecticide and fish poison.

Also known as derris powder, it was formerly used as an organic insecticide used to control pests on crops such as peas. However, due to studies revealing its extreme toxicity, as well as due to the concentration level of rotenone to which the powder is often refined, experts in ecological and organic growing no longer consider it ecologically sound. Rotenone is still sold in the U.S., however.

Derris root, when crushed, releases rotenone. Some native residents of Fiji and New Guinea practice a form of fishing in which they crush the roots and throw them into the water. The stunned or killed fish float to the surface where they can be easily reached. In Indonesia these roots are called tuba.

Despite its toxicity, Derris is used as a food plant by the larvae of numerous Lepidoptera species including Batrachedra amydraula.

Other articles related to "derris":

List Of View Askewniverse Characters - Clerks (1994) - Rick Derris
... Rick Derris is Jay's older brother ... Quint and Brodie Bruce recall an incident at a costume party in which Derris and Turner had sex on a pool table ... and Quint remember the event very well because Derris and Turner were having sex on a pool table while dressed as Jackie Gleason and Burt Reynolds, respectively, from Smokey and the Bandit ...
Environment and Special Species - Lai Chi Wo Nature Trail - Looking-glass Mangrove and White-flower Derris
... mangrove (Heritiera littoralis) and White-flower Derris ... mangrove in fact is formed by the growing White-flower Derris ...
Raspberry Beetle
... The Raspberry beetle has to be controlled in many locations by use of derris, a pesticide ... and organic growing no longer consider derris ecologically sound, Rotenone which is made from derris is still sold in the U.S ...
Tales Of Symphonia - Media Adaptations - Audio CDs - Original Soundtrack Listing
... "Derris Kharlan (Appear)" 144 14 ... "Derris Kharlan (Fear)" 143 15 ... "Derris Kharlan (Shrine)" 141 16 ...