SYNOPSISIntense weed control is practised during establishment and re-establishment; cleaning to improve access during the stand's life is done, but has had little effect on the build up of weed populations in South African plantations.The cost of weed control has increased some ten-fold while the efficiency of the cleaning operation has, if anything, improved since the last survey in the late sixties.The use of herbicides has increased significantly since the last survey and appears likely to increase further in the future. Herbicides are more effective than slashing, which stimulates growth in some weed species. Extension work must be increased if current herbicide knowledge is to be effectively utilised.Research to quantify the effect of weed infestation in commercial stands and to examine the possibility of grazing animals controlled by electric fencing to overcome the problem should be given priority.