The importance of weeds in reducing corn and peanut yields, and the nee^ for control of weeds early in the crops' lifespan are stressed. Some of the advantages and disadvantages of herbicides vis-a-vis manual methods for the smaller farmers are discussed. A tentative list of the major weeds of arable land in the Caribbean Region comprises nine grass species (or genera where several species of a genusare important), four broad-leaved species or genera, and Cyperus rotundas (nutgrass). Nine herbicides are recommended for corn, and nine for peanuts, of which two are provisional recommendations. Interactions of weed control, particularly by herbicides, with rainfall and soil moisture conditions and with several agronomic factors are discussed, and finally the importance of developing production packages to include weed control as an integral part is emphasized.