322 MANUAL OF FRUIT DISEASES 
best on trees in a weakened condition, and for that reason the 
careful grower may expect that the trouble will never be of 
great consequence. 
REFERENCES 
Selby, A.D. Preliminary report upon diseases of the peach. 7. Con- 
striction disease of stem and branch. Ohio Agr. Exp. Sta. Bul. 
92 : 233-234. 1898. 
Clinton, G. P. Notes on plant diseases of Connecticut. Peach. 
Stem canker, Phoma Persice Sacc. Connecticut Agr. Exp. Sta. 
Rept. 1912: 351-352. 1913. 
