ABSTRACT:

The efficacy of 5% Monodra seed Petroleum ether extract (5% MSEE), 5% Jatropha seed petroleum ether extract (5% JSEE), 5% Monodroa seed water extract (5% MSWE), 5% Japtropha seed water extract and a standard synthetic insecticide, Lamdacyhaiothrin (25g a.i./ha) were evaluated in the field during the early season fir their effectiveness in the control of spp, the major insect pests of Okra. All treatments, except the 5% JSWE, significantly reduced (P =0.5) the population of the pests with Lamdacyhalothrin proving more superior in efficacy. The ranking of effectiveness in the control of Podagrica spp was; Lamdacyhaiothrin > 5% MSEE > 5% JSEE > JSWE > Control. The Lamdacyhalothrin had a higher resuduak effect when compared with the other treatments, while the ether extracts had greater residual effects when compared with the water extracts and control. There was significant difference in the total fruit yield (t - I) = ( tons ha 1) obtained in the Lamdacyhalothrin-treated plots and other treatments; and the yields from the plots treated with the ether extracts of the two botanivals were also significantly higher than the control. The correlation coefficient (r = - 0.96) showed that the total fruit yield produced were affected negatively by the level of defoliation on the leaves. The ether extracts of the two botanicals showed good promise as substitute for the area. Perhaps, higher dosages of the products and closer spray regime may improve their efficacy.

 TABLE OF CONTENTS:

Page Tittle i.

Certification: ii

AcknowledgEment: iii

Dedication: iv

Abstract: V

Table of Contents: vi

List of Tables and Plates: vii

CHAPTER ONE

INTRODUCTION: 1-2

ChAPTER TWO

'LITERATURE REVIEW:

Origin and Distribution of

Abeliuoschus esculentus: 3-4-,

Botany and Taxonomy of Okra:

Utilization of the Crop:

Environmental and Climatic requirement

of Okra: 7-8

2.5: Agronomy of Abelmoschus esculentus: 8-10

2.6: Insect Pests Associated with the Malvaceae

family: 11-13

2.7: The Okra Flea Beetles(Poda&rica spp): 13-14

2.8: Methods of Insect Pest Control in Okra

Production: 15-16

2.9: Importance of Botanicals in Insect Pest

Control: 16-18

2.10: The PLants Extracts: Monodora myristica and

Jatropha curcas: 18-19

CHAPTER THREE

MATERIALS A1T) METHODS:

3.1: Experimental Site: 20

3.2: Land Preparation: 20

3.3: Experimental Design and Planting Material: 20-21

3.4: Insecticidal Applications: 21-22

3.5: Harvesting and Types of Data Collected:

3.5.1: Number of Pods/Plant: 22

3.5.2: Total Fruit Yc1d: - 22

3.5.3: Plant Stem Height: 23

3.5.4: Podarica Count: 23

3.5.5: Percentage Defoliation: 23-24

CHAPTER FOUR

RESULTS AND DISCUSSION 28-36

SUNMARY AND CONCLUSION: 3733

Ref rercea.: 39-43

Appendices: ----- 4.--55

LIST OF TABLES AND PLATES