New York AGRICULTURAL EXPERIMENT STATION. 209 
affected by the disease show brown, black or bluish discoloration 
of the bark in areas from one to four inches long and extending 
half to two-thirds or more of the way around the cane. 
This raspberry cane blight appears to be an important disease 
which has been misunderstood by fruit growers and neglected by 
pathologists. It will be made the subject of a special investiga- 
tion during the coming season. 
OruprR Dispases.—Leaf spot (Septoria rubi) was common but 
did little if any damage. Crown gall is common and often de- 
structive. In this State crown gall is probably more destructive 
to the raspberry than to any other plant. It is particularly 
‘destructive to the red varieties; for example, Cuthbert and 
Loudon. | 
Occasionally one meets with raspberry plants on which the 
foliage is yellow, dwarfed and curled. The cause is unknown 
to us. 
STRAWBERRY DISEASES. 
The only strawberry disease observed in 1900 was leaf blight 
(Spherella fragaria) a little of which could be found in almost 
any strawberry bed, but it does not appear to have been destruc- 
tive anywhere. 
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