CONTENTS XI 



PAGE 



Response to Non-nutritional Environment 312 



For the Disease . . 312 



Signs .312 



Histology . . 313 



Variability . 313 



Transmission 313 



Literature . . 313 



X. THE ANGULAR LEAF SPOT OF COTTON . . 314 



Type .314 



Cause Bacterium malvacearum EFS 321 



Technic - 330 



Determine .... 333 



For the Organism 333 



Morphology 333 



Cultural Characters 333 



Response to Non-nutritional Environment 335 



For the Disease 335 



Signs .... 335 



Histology - 336 



Variability .... .... 336 



Transmission 337 



Literature 339 



XL THE MULBERRY BLIGHT .... .... 340 



Type .... 340 



Cause Bacterium rnori Boyer and Lambeit emend. EFS 342 



Technic. . ., ... 351 



Determine 354 



For the Organism 354 



Moiphology ..... 354 



Cultural Characters 354 



Response to Non-nutritional Environment 355 



For the Disease 356 



Signs 356 



Histology 357 



Variability . . 358 



Transmission 358 



Literature 358 



XII. FIRE-BLIGHT OF APPLE, PEAR, QUINCE, ETC 359 



Type .... 359 



Cause Bacillus amylovorus (T. J. Burrill) Trevisan 367 



Technic ... 374 



Determine . 380 



For the Organism 380 



Morphology . 380 



Cultural Characters . 380 



Response to Non-nutritional Environment 380 



For the Disease 380 



Signs .380 



Histology . . 381 



