Hakam effectively controls the narrow leaf weeds like Echinochloa spp., Goose grass, fox tail, Cynodon (doob), Large crab grass, Saccharum sp. (kans), Hemarthria sp. (suttu), Wild sorghum, Volunteer paddy, Volunteer maize, Volunteer pearl millet, etc. Hakam is very quickly absorbed by the weeds and translocated and kill the weeds. The affected weeds are unable to regenerate.  It is quickly absorbed by the weeds, hence rain even one hour after spray does not affect its effectiveness. Weed leaves turn puplish/ red within 5-8 days after Hakam application and within 10-15 days are completely killed.