CONTENTS vil 



CHAPTER XI 



DISEASES 



The science of plant disease Animal pests : Man, deer, monkeys, 

 squirrels, and rats Methods of destroying rats Insect pests 

 Mosquito Blight The Steirastoma beetle Thrips Aphis Twig 

 girdlers Mealy bugs Ceratitis punctata Scale The Lac insect 

 Deimatostagea contumax Parasol ants Termites Insect destructive 

 in the Gold Coast Insecticides Boring insects Sucking insects 

 Resin wash Resin compound Kerosene emulsion Whale-oil soap 

 solution Tobacco solution Resin and whale-oil soap compound 

 Leaf-eating insects Paris Green London Purple . pp. 76-92 



CHAPTER XII 

 VEGETABLE PARASITES AND EPIPHYTES 



Dodder Loranthus leptolobus Cryptogams Fungus diseases of 

 cocoa Losses sustained through fungus diseases Vegetative and 

 reproductive organs of fungus parasites Canker disease, Nectria sp., 

 in Ceylon Canker in the West Indies Die-back and brown-pod 

 disease, Diplodia cacaoicola -Witch-broom disease, Colletrotrichum 

 luxiferum Lasiodiplodia Black rot of fruits, Phytophthora omni- 

 vora, De Bary Root disease Pink disease, Corticium lilaco-fuscum 

 Thread blights Fungus diseases of minor importance Fungicides 

 Bordeaux mixture Ammonia and copper carbonate mixture 

 Potassium sulphide solution ...... pp. 93-113 



CHAPTER XIII 

 HARVESTING AND TRANSPORTING 



Fruiting age Character of ripe fruit Collection Reaping imple- 

 ments Bean extraction Necessity for expediting transport of 

 beans from plantation to fermenting-house Decauville railways 



pp. 114-121 



CHAPTER XIV 

 COCOA FERMENTATION 



Effects of fermentation Action of oxidising enzymes Yeasts and 

 bacteria Germination during fermentation Fermentation a biological 

 process Characters of beans with white, and purple, cotyle- 

 dons Aeration necessary for fermentation Fermenting- chambers 



pp. 122-131 



