ABSTRACT

Cowpea, (Vigna unguiculata (L) Wialpers, Fabaceae), is an important edible legume crop  many parts of the world especially in tropical and subtropical regions. It is used as human food due to its high protein content (Dioug 2011), the high protein, amino acid and lysine contents ofthe seeds make them a natural supplement to staple diet cereals, roots, tubers and fruits (Somta et al., 2008) and also as livestock feed to make silage and hay. It is a drought tolerant and short warm weather crop well adapted to the drier regions where other food legumes do not perform well (Singh, 1987). It requires annual rainfall of about 750-1100 mm (Skerm, 1988).According to Oparaeke et al., (2000) yield losses in cowpea due to insect pests in Nigeria was estimated to be above 80%. C. maculatus infestation causes direct damage to cowpea grains causing loss of grains.

TABLE OF CONTENTS

Title page

Certification

Dedication

Acknowledgement

Table of content

List of Tables

List offigures

Abstract

CHAPTER ONE

1.0 Introduction and literature review

1.1 Introduction

1.2 Statement ofproblem

1.3 Justification

1.8.3 Bioactivity ofAzadirachta indica

1.9.1 Morphology and description ofIrvingia gabonensls

1.9.2 Uses ofIrvingia gabonensis

1.4 Aims and Objective ofthe study

1.5 literature review

1.5.1 Taxonomy and origin

1.5.2 Description and morphology

1.6.1 Biology of callosobruchus maculatus

1.6.2 Life Cycle of callosobruchus maculatus

1.6.3 Habitat ofCallosobrucus maculatus

Botanicals

Morphology and Description ofCaricapapaya

1.7.2 Uses ofCaricapapaya

1.7.3 Bioactivity ofCarica papaya

 Morphology and description Azadirachta indica

 Uses ofAzadirachta indica

Bioactivity ofAzadirachta indica

1 Morphology and description ofIrvingia gabonensls

1.9.2 Uses ofIrvingia gabonensis

CHAPTER TWO

2.0 Materials and Method

2.1 Study Area

2.2 Insect Culture

2.3 Beans seeds used fbr the experiment

2.4 Collection and preparation ofplant materials

2.5 Methodology

2.6 Statistical Analysis

CHAPTER THREE

3.0 Results 

3.1 Mean Mortality ofC. maculatus in Caricapapaya

3.2 Mortality ofC. maculatus in Irvingia gabonensis

3.3 Mortality of C. maculatus in Azadirachta indica

CHAPTER FOUR

4.0 Discussionand conclusion

4.1 Recommendations 23

References 24

Appendix

LIST OF TABLES

Table 3.1: Mean mortality ofC. maculatus treated with Caricapapaya 16

Table 3.2: Mean mortality of C. maculatus treated with Azadirachta indica 18

Table 3.2: Mean mortality of C. maculatus treated with Irvingia gabonensis 20

LIST OF FIGURES

Figure 1.2: Life cycle ofCallosobruchus maculates purdure extension, 2013 5

Figure 1.1: Diagram of a male and female bean weevil (Callosobruchus maculatus) 7