240 



Peach Leaf-curl. 



[July, 



form a tuft at the end of a stunted shoot When a branch is 

 once infected, the fungus continues to grow in the tissues, and 

 passes into the new leaf-buds formed each season. The ap- 

 pearance or intensity of the disease, even in the case of leaf-buds 



Peach Leaf-Curl. 



originating from infected shoots, depends almost entirely on 

 prevailing climatic conditions. During a genial spring, when 

 growth is unchecked until the leaves are full-grown, " curl " is 

 practically absent ; whereas if a cold, damp period occurs while 



