XVI DISEASES OF CROP-PLANTS 



CHAPTER XXVI : DISEASES OF SUGAR CANE. 



Root Disease (General type). Root Disease (Acute type). Page 

 The Epidemic on the Bourbon Cane. Red Rot. Rind Fungus. 

 Pineapple Disease of Cuttings. Diplodia Rot. Wilt Disease. 

 Top Rot (Bud-rot). Gumming Disease (Cobb's Disease). 

 Smut. Schizophyllum Rot. The Iliau Disease. Cytospora 

 Rot. Leaf-sheath Rot. Red Spot of the Leaf-sheath. Ring 

 Spot. Eye Spot. Red Leaf-spot. Yellow Leaf-spot. Brown 

 Leaf-spot. Sereh. Mosaic Disease (Mottling Disease, Yellow 

 Stripe Disease). Chlorosis (Gall Patches, Moonshine). Fiji 

 Disease. Sclerospora Disease ---___ 289 



CHAPTER XXVII : DISEASES OF ROOT CROPS. 



Cultivated Aroids. 



Dry Rot or Saltpetre. Pythium Rot _ _ _ _ 331 

 Arrowroot. 



Burning Disease (Rosellinia). Cigar Disease _ _ _ 332 

 Cassava. 



Wither-tip. Leaf Spots ------- 335 



Onion. 



Bacterial Soft-rot -____--- 335 

 Sweet Potato. 



White Rust _-_---_-_ 336 

 Yam. 



Wilt. Tuber Rot. Leaf Blotch - _ _ _ - 337 



CHAPTER XXVIII : DISEASES OF LEGUMINOUS PLANTS. 



Ground Nut. 



Leaf Rust. Leaf Spot. Root Disease _ _ _ _ 338 

 Kidney Beans. 



Anthracnose. Bacterial Blight. Stem Rot _ _ _ 340 

 Pigeon Pea. 



Root and Stem Diseases. Rust _ _ _ - - 342 



CHAPTER XXIX : DISEASES OF MINOR FRUIT PLANTS. 



Pineapple. 



Tangle Root. Root Disease, Wilt or Blight. Base Rot. 



White Leaf-spot. Leaf-base Rot. Fruitlet Spot, Black Eye. 



Black Spot. Thielaviopsis Soft Rot. Diplodia Core Rot. 



Prevention of Fruit Rots __---_ 344 



Papaw. 



Black Leaf-spot. Stem and Fruit Rot _ _ _ _ 352 

 Tomato. 



Blossom-end Rot. Leaf Mould. Septoria Leaf -spot. Bacterial 



Wilt, Bubbly Fruit-rot ------- 353 



CHAPTER XXX: DISEASES OF PLANTS NOT CLASSIFIED. 



Agave. 



Anthracnose -----.__ — _ 361 

 Rose. 



Black Spot, Mildew. Other Diseases _ _ _ _ 361 



