CONTENTS Xill 



CHAPTER XI 



PAGE 



PEAR DISEASES . 323 



Fire-blight. * 323 



Scab . . . v. 332 



Pink-rot 337 



Mycosphserella leaf -spot 337 



Superficial bark-canker 340 



Frost-injury 34 



Crown-gall ....... 341 



Eastern rust . 341 



Pacific Coast rust 346 



Leaf-blight , 347 



Ozonium root-rot 36 



Sooty-blotch and fly-speck 351 



Black-mold 



Black-rot canker 351 



Brown-rot . 3 ^ 2 



Bitter-rot -. 362 



Red-leaf . 353 



CHAPTER XII 



PLUM DISEASES .-'."' 354 



Brown-rot 3 " 4 



Black-knot . . . . -. 356 



Leaf-blight - 863 



Frost-injury . . . 36 & 



Die-back . --. -. 365 



Gummosis . 365 



Black-spot ....... .... 367 



Silver-leaf . . >/..,. 368 



Pockets, or bladders 373 



Rust . . 377 



Wilt . .' . .- -- . 38 



Scab . . 383 



Rosette ./ . J .- .' ^ l .^ 38 - 



Yellows . . . . '- - 384 



Little-plum *,-". - . ... *.; 



Crown-gall. . * . . " .;.,.%-.*-.. 885 



