RASPBERRY DISEASES 415 
September ; and (3) again the following spring from the bursting 
of the buds to the setting of the fruit. Future experience may 
prove spraying a more beneficial measure of control. 
REFERENCES 
Stewart, F. C., and Eustace, H. J. Raspberry cane blight and rasp- 
berry yellows. New York (Geneva) Agr. Exp. Sta. Bul. 226: 
331-366. 1902. 
Stewart, F. C. Notes on New York plant diseases, I. Cane blight, 
Leptospheria Coniothyrium (Fckl.) Sace. New York (Geneva) 
Agr. Exp. Sta. Bul. 328: 387-389. 1910. 
Jackson, H. S. Raspberry cane blight. Oregon Crop Pest and Hort. 
Bienn. Rept. 1911-1912 : 264. 1913. 
Gloyer, W. O., and Fulton, B. B. Tree crickets as carriers of Lepto- 
spheria Coniothyrium (Fekl.) Sace. and other fungi. New York 
(Geneva) Agr. Exp. Sta. Technical Bul. 50: 1-22. 1916. 
Clinton, G. P. Notes on fungous diseases, etc., for 1906. Raspberry 
wilt, Leptospheria Coniothyrium (Fekl.) Sacc. Connecticut Agr. 
Exp. Sta. Rept. 1906 : 321-324. 1907. 
LEAF-SPOT 
Caused by Septoria Rubi Westd. 
This disease is less troublesome on raspberries than on black- 
berries and dewberries. It has been reported from several 
eastern and middle western states, but no cases of severe injury 
are recorded. 
The spots often appear as early as the middle of June in the 
form of whitish or faintly brownish areas. Frequently they 
are numerous, and in very severe cases an affected leaf dries up. 
In rare cases this results in the development of inferior fruit 
which is small, dry and tasteless. 
The disease is controlled by the use of bordeaux mixture, al- 
though the foliage of raspberries is delicate, and susceptible to 
injury by this fungicide. (See Blackberry, page 166.) 
