Abstract
The biology of Mononychellus tanajoa (Bondar) is described from laboratory investigations in Trinidad, Uganda. Investigations on populations in the field in Uganda showed that mite densities were mainly related to the pattern of rainfall, abundance of natural enemies (including the predators Oligota sp. and Stethorus sp.) and the availability of nutrients in the leaves. There appeared to be a four-year cycle of abundance, controlled especially by the predators
