ABSTRACT
Weed infestation is one of the constraints the small scale farmers in Nigeria must contend with in the cultivation
of root and crop tubers. The effects of weeds on the cultivation and yield losses in root and tuber crops are discussed. The
concepts of weed control and weed management are differentiated in this paper. The approaches in weed management
include cultural method mainly by hand weeding at different weeding regimes for various crops, biological method using
low growing crops, chemical method using various herbicides and suggested ways of over-coming the constraints on
herbicide use and integrated weed management practices such as applying herbicides with cultural and biological practices.