Cowpea (also known as black-eyed pea) originated in Africa and is the major source of plant proteins in the diet of rural populations in sub-Saharan Africa. Insect pests pose the greatest threat to cowpea production. The crop is attacked at every stage of its growth by insects. Since the late 1970s, extensive studies on insect pests of cowpeas have been conducted at the International Institute of Tropical Agriculture (IITA). IITA’s Guide to Cowpea Production in West Africa states that generally, 2-3 sprays are required for a good crop of cowpea.
“Cowpea is one of the most important food and forage legumes in the semi-arid tropics.
Despite cowpea’s importance and high yield potential in the Nigerian savannas, insect pest attack is a major constraint upon production. Severity can vary, and sometimes lead to total yield loss.
High levels of insect resistance are not available in current cultivars.
Insecticide application is the most widely known means of a pest control method in cowpea; it is not otherwise feasible to grow cowpea commercially. Farmers can improve yield 10-fold if insecticides are used.”
Authors: Kamara, A. Y., et al.
Affiliation: International Institute of Tropical Agriculture, Nigeria.
Title: Integrating planting date with insecticide spraying regimes to manage insect pests of cowpea in north-eastern Nigeria.
Source: International Journal of Pest Management. 2010. 56:243-253.