Pests and diseases.

Pests such as tsetse flies locus, ticks boll weevils, felas etc are a great menace to both man and animals.  These can destroy crops, cause sickness to man and animals.
Pests and diseases can be controlled through:
    1.    Crop rotation.
    2.    Good medical facilities.
    3.    Use of insecticides and fungicides.
    4.    Maintenance of good hygiene.
    5.    Research and training programs.