The damage caused by insect pests is one of the principal factors leading to reduced crop production. Damage may be direct or indirect. Pests have a direct impact on agricultural food production by chewing the leaves of crops, thus reducing photosynthesis, sucking out plant sap, boring within the roots, fruits, stems or leaves. Direct losses may also occur post- harvest during storage. Indirect damage may result when feeding damage caused by insects creates opportunities for secondary infection by pathogens to take place resulting in rots and loss of quality.