Peach Leaf-Curl. 



373 



the tip of the branch, and the significance of this is apparent 

 later on. 



The leaves soon become grayish or mealy in appearance. 

 This appearance is due to the fact that the fungus is fruiting, 



65 — Peach curl a7id gumniosis. 



producing the spores which are to disseminate the disease. 

 After the grayish color appears, the affected leaves gradually dry 

 up and fall off. In this latitude the defoliation from such 

 injuries usually occurs late in June. 



In the late stages of this curl disease, as with some other 

 peach diseases, gummy exudations are often noted on those twigs 

 which are enlarged by the fungus ; or these may occur even on 



