Management of problematic aquatic weeds in Africa
The control of aquatic weeds in Africa is difficult and all sound options should be considered. When necessary, a combination of control measures may be used, depending on the nature of the local problem. Among the ways to control exotic weeds, environmentally friendly and sustainable methods should be adopted. A sound option is the so-called classical biological control, which is the use of beneficial organisms - the natural enemies that effectively limit the populations of the host plant in its area of origin - to reduce the growth and population density of the weed in the area of introduction. The organisms used are host-specific and do not harm other desirable plants.