Derris root, when crushed, releases rotenone. Rotenone which is made from derris is still sold in the U.S. He introduced Derris as insecticide from Malaya. The raspberry beetle is often controlled by use of derris, a pesticide. It may be synonymous with "Derris". The larvae feed on "Derris trifoliata" and "Phoenix dactylifera". Other plant species include "Rhizophora apiculata" and "Derris trifoliata". Larva feed on "Derris scandens" ("Papilionaceae") and "Saraca thaipingensis". The larva has been recorded on "Derris trifoliata","Derris elliptica","Millettia pachycarpa" and "Pongamia" species. Derris robusta is a tree species in the genus "Derris" found in India.