364 



MANUAL OF FRUIT DISEASES 



FIG. 105. Leaf-blight of plum. Note the shot-hole effect. Upper surface 

 (left), lower surface (right). 



second application. In relatively dry seasons the third spraying 

 may be omitted. Treatment for nursery trees should be given 

 as recommended under Cherry, page 175. 



See fuller discussion of the symptoms and cause under Cherry, 

 page 172. The leaf-blight of plum and cherry, while not caused 

 by identical fungi, are so similar that the statements made for 

 cherry leaf-blight apply to the plum. 



REFERENCES 



Hesler, Lex R. Diseases of the plum. Leaf spot. In The Fruit 

 Industry in New York State. New York Agr. Dept. Bui. 79: 

 1194-1198. 1916. 



See further references to literature under Cherry, page 176. 



