Figure 2

Repellency records of 2α,3β,21β,23,28-penta hydroxyl 12-oleanene per hour interval up to 5 hours. With doses of 2α,3β,21β,23,28-penta hydroxyl 12-oleanene, the repellency property (percent repulsion) against the pest was increased. As duration of exposure of the compound toward the pest was increased, the repellency property was increased up to 4 h of exposure, and after that it became constant.