140 MANUAL OF FRUIT DISEASES 



REFERENCES ON JONATHAN-SPOT 



Scott, W. M., and Roberts, J. W. The Jonathan fruit-spot. U. S. 



Agr. Dept. Plant Indus. Bur. Circ. 112 : 11-16. 1913. 

 Jackson, H. S., and Winston, J. R. Jonathan fruit spot. Oregon 



Agr. Exp. Sta. (Hood River Branch) Rept. 1913-1914:20-21. 



1915. 



Swingle, D. B. Fruit diseases in Montana. Jonathan spot. Mon- 

 tana Agr. Exp. Sta. Circ. 37 : 314. 1914. 



Norton, J. B. S. Jonathan fruit spot. Phytopath. 3 : 99-100. 1913. 

 Cook, M. T., and Martin, G. W. Jonathan spot rot. New Jersey 



Agr. Exp. Sta. Rept. 1914 : 500-503. 1915. 

 Cook, M. T., and Martin, G. W. The Jonathan spot rot. Phytopath. 



3:119-120. 1913. 

 Cook, M. T., and Martin, G. W. The Jonathan spot rot. Phytopath. 



4 : 102-105. 1914. 

 Stakman, E. C., and Rose, R. C. A fruit spot of the wealthy apple. 



Phytopath. 4 : 333-335. 1914. 



AMERICAN BROWN-ROT 



Caused by Sclerotinia cinerea (Bon.) Schrot. 



Apple brown-rot is at times erroneously called black-rot; 

 likewise black-rot is often referred to as brown-rot. The two 

 diseases should not be confused. Apple brown-rot is much less 

 common than black-rot in America, while in Europe brown-rot is 

 by far the more common. In fact, brown-rot is one of the most 

 serious of apple-rots in Europe. In the United States the disease 

 occurs to some extent in several different states, including 

 North Carolina, West Virginia, Virginia, New York, Minnesota, 

 Arkansas, Nebraska, New Mexico and Missouri. It probably 

 occurs in other apple states. 



Varieties do not all suffer alike. The disease is more 

 common on summer varieties like the Yellow Transparent and 

 Chenango. In Kentucky, the Genet is injured more than 

 other varieties. In England, a similar disease affects the 

 limbs, forming cankers. 



