xii Contents 



PART IV 



DISEASES OF ORNAMENTALS 



CHAPTER PAGE 



XVII. Alternanthera Diseases .... 200 



XVIII. Aster Diseases 207 



XIX. Carnation Diseases 21 ? 



XX. Chrysanthemum Diseases . . . . 23 ~ 



XXI. Cyclamen Diseases 24^- 



XXII. Hyacinth Diseases 266 



XXIII. Lilac Diseases 275 



XXIV. Orchid Diseases 29c 



XXV. Primrose Diseases 315 



XXVI. Sweet Pea Diseases 33/! 



XXVII. Tulip Diseases 34F 



PART V 

 greenhouse fests 



XXVIII. Plant Pests 364 



XXIX. Greenhouse Thrips 36c 



PART VI 



METHODS OF CONTROL 



XXX. Methods of Control 381 



