1.1 Introduction
Beans (Vigna unguiculata) are grain legumes which are rich, water soluble vitamins and less expensive sources of dietary proteins. Beans are commonly known as the cowpea, black-eyed pea or beans, catjang, chinapeas, cowgram or southern peas, and grown in tropics and subtropics used as food for human as well as for animal (Bliss, 1972). They vary in colour, shape, size and eye-patterns. Among various types of legumes, beans is the most widely grown, traded and distributed food commodity in Nigeria (Campos-Vega and Oomar, 2010), and also exported to various countries around the world. Pesticides are poisons specifically produced to get rid of pests and other related insects (Banjo et al., 2010).
As a prelude to other parts of this study, this chapter will discuss the background upon which this study was initiated, the statement of problems that led to this study, the Aim and Objectives of the study. Others are Significance of the study, Scope of work, Research hypothesis and questions, Limitations of the Study and Definition of technical terms.
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