Abstract:
Biological control is the use of living organisms to control pests and weeds. It is therefore a form of population management. The organisms controlled are noxious in that they consume useful plants or plant products, attack livestock, inter-< fere with marl's pleasure 'or affect man's health. In nature, lions feed on zebras or antelopes and yet both the eater and the eaten seldom decline in number. Clearly, a form of biological control exists in nature to reduce competition because if the population of the zebras and antelopes were to explode, there would be scarcity of grass. Biological control therefore is nature's secret of check and balance of population growth of living things.