PEACH DISEASES 289 



Clinton, G. P. Peach yellows and so-called yellows. Connecticut 



Agr. Exp. Sta. Kept. 1908 : 872-878. 1909. 

 Selby, A. D. Peach yellows, black knot, and San Jose scale. Ohio 



Agr. Exp. Sta. Bui. 72 : 193-220. 1896. 



LITTLE-PEACH 

 Cause not known 



Like peach-yellows this disease is confined to the northeastern 

 United States. It has been known for but a few years in this 

 country. The origin of little-peach is unknown, but the sug- 

 gestion has been made that it came from abroad with Japanese 

 plums. The first appearance of the disease in America was 

 once believed to have been in Michigan prior to 1893, but there 

 are some indications now that it appeared in New York State 

 at an earlier date. More recently important notices of little- 

 peach have come from New Jersey and from Ontario, Canada. 



This disease is not confined to trees of any particular age, 

 although a larger number of the cases are found on trees over 

 five years of age. In New York State the Smock and Salway 

 varieties remained apparently resistant for several years, but 

 finally these have become affected. In some localities of the 

 states of New Jersey and Michigan little-peach is a more 

 destructive disease than peach-yellows. 



Symptoms. 



Little-peach may or may not appear on a tree at the same 

 time as yellows. In the former case the two diseases are often 

 considered together. Little-peach is more difficult to detect 

 than yellows. In the case of yellows the. premature ripening 

 of the fruit, the internal red splashes, and the slender shoots 

 with narrow leaves are easy marks of distinction. But in little- 

 peach, foliage characters are the most prominent earmarks 

 of the disease, hence a knowledge of varietal characteristics of 

 the foliage is necessary in detecting the presence of this trouble. 

 For example, the Elberta has a long, wide, straight leaf with a 



