CONTENTS 



PAGE 



INTRODUCTION . 1 



CHAPTER I 



THE NATURE AND SYMPTOMS OF DISEASES .... 5 



The plant in health and disease Causes of disease Symptoms of 

 disease Common terms used in designating diseases. 



CHAPTER II 



THE STRUCTURE AND FUNCTIONS OF PLANTS . . . . 11 



The plant kingdom Structure of plants The A T egetative organs of 

 the plant Physiology Bacteria Fungi Saprophytes and para- 

 sites Reproduction Distribution of spores Resistance and 

 germination Habits of fungi. 



CHAPTER III 



CLASSIFICATION OF FUNGI . . . . . . . 31 



Phycomycetes Ascomycetes Basidiomycetes Fungi Imperfecti. 



CHAPTER IV 



OTHER CAUSES OF PLANT DISEASES . . . . . 67 



Slime moulds Seed plants Insects Bacteria Nematodes 

 Environmental and functional or physiological diseases. 



CHAPTER V 



DISEASES OF SUGAR-CANE CORN PIGEON PEA RICE COTTON 

 CITRUS FRUITS PINE APPLE PAPAW BANANA 

 MANGO AVOCADO FIG GUAVA OLIVE . . . . 79 



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