Usage examples (4)

• For example, rotenone, an insecticide derived from a tropical root called derris, is as poisonous to humans as organophosphate chemical pesticides.
• Cropping systemIncreasing the woody contents in leaf litterExamples of indigenous agroforestry systems: Use of derris as botanical pesticide
• In the tropics, people traditionally harvest great quantities of fish by tossing a handful of powdered derris (a root containing rotenone) into the water, waiting a few...
• MessageWorkshop to reviseList of participantsCurrent program thrusts in Upland developmentDegradation of the uplandsNutrient cycles in upland farmsEstablishing an swcsystemFarm...