XX ILLUSTRATIONS 



FIR. . PAGE 



107. Black-spot on plum-fruits .368 



108. Silver-leaf (after Giissow) 370 



109. Plum-pockets 375 



110. Plum-rust ' . . . .378 



111. Plum- wilt (after Higgins) 381 



112. Fire-blight on quince (courtesy of V. B. Stewart) .... 388 



113. Leaf-blight of quince 389 



114. Quince-rust on fruit (after F. C. Stewart) 391 



115. Quince-rust on twig .......... 391 



116. Quince-rust on red-cedar (courtesy of J. L. Weimer) . . . 392 



117. Orange-rust on blackberry 400 



118. Kaspberry-yellows . . 403 



119. Raspberry-anthracnose 408 



120. Raspberry cane-blight . . . . . . . . .412 



121. Cane-blight ; fruit-bodies of pathogene ...... 413 



122. Raspberry spur-blight 418 



123. Strawberry leaf-spot . . * 423 



124. Bordeaux-injury on apples (after Wallace) 434 



125. Apple-blossoms in proper stage of development for first summer- 



application of a fungicide . 440 



T26. Apple-blossoms in proper stage of development for second summer- 

 application of a fungicide 441 



