Pomaceous Fruits 



41 



Blush, Baldwin, Grimes, Stayman, Winesap. The following 

 are more susceptible: Wealthy, Jonathan, Rome, York 

 Imperial, Ben Davis, Greening. 



Q Fire-blight ■^^ (Bacillus amylovorus (Burr.) Trev.). — De- 

 scription and discussion of this disease will be found on 



Fig 



16. — A cedar apple in condition to give off spores. 

 After Anderson. 



page 62 under pear, the blight of which is identical with the 

 apple disease. Its character and treatment are the same upon 

 both hosts. While the blight is preeminently a pear disease, 

 it also affects the apple very seriously, particularly in the 

 form of blossom-blight and body-blight. 



