DISEASES OF TREE AND FRUIT 1 37 



being incurable and fatal in all cases. The treat- 

 ment for rosette is precisely the same as for yellows. 



''little peach'' and ''big peach" 



Little peach is a disease that has recently appeared 

 in Michigan and is hardly known outside of the 

 Michigan peach belt, though it has been found in a 

 few places in New Jersey and western New York. 

 The characteristic feature is the smallness of the 

 fruit, which instead of expanding with the season's 

 growth remains small, hard and worthless. The 

 trees lose vigor, the leaves are small and weak and 

 the tree dies after two or three years of misery. The 

 cause of this disease is quite as obscure as the cause 

 of the yellows and of the rosette. It is probably of 

 the same general nature. It is equally incurable and 

 almost as promptly fatal. The proper treatment is 

 to dig out and burn the trees as soon as the disease 

 is discovered. 



Big peach is a new malady which has appeared in 

 some New Jersey peach orchards. The fruits en- 

 large enormously, often to twice or three times nor- 

 mal size. Orchardists have so far resorted to cutting 

 and burning, since they have not been able to learn 

 the cause or preventive methods. 



LEAF CURL 



This has been one of the most serious diseases in 

 recent years in northern and central latitudes. It 

 has caused serious concern to all peach growers and 

 more active attention has been given to it than to 

 the yellows for the reason that the disease seems to 

 be preventable. It is caused by a definite, well- 

 known fungus. Proper spraying will check the 



