Technical Name. Pendimethalin 30% EC Mode of Action Selective Herbicide Specifications. 1 COROPENDI is a selective herbicide and controls most of the annual grasses and many annual broad leaved weeds. 2 COROPENDI is absorbed by the roots andleaves and the affected plants die shortly after germination or following emergence from soil. 3 COROPENDI is mostly applied as pre-plant incorporated, pre- emergence, pre-transplanting or early post- emergence herbicide. Category: Dinitroaniline group of herbicide roots andleaves. Phytoto>ucity Injury to Maize may occur if used as pre-plant, soil incorporated treatment. Availability COROPENDI available in 250ml, 500ml, lLtr. & SLtr. Packing