April, '10] XOUTOX: TEACH DISEASES 231 



has been published other than the fifteen to twenty years old ash 

 analyses, though very complete analyses of healthy peach were pub- 

 lished by the Bureau of chemistry in 1905. 



Rosette 



Another somewhat similar disease known as rosette, found first 

 locally in Georgia some fifteen years ago, is distinguished by the 

 absence of premature fruit (the fruit becoming gummy and falling 

 before ripening), more tufted growth and death after a shorter time 

 five months to two years). It has since been found in South Carolina, 

 Alabama, Oklahoma, and in 1901 in Missouri. The past summer, I 

 found that it had killed most of the peach orchards about Manhattan, 

 Kansas, where, 15 years ago, it was confined to one or two orchards. I 

 also found it along the Kansas valley as far east as Topeka and 

 extending up the Blue river, possibly into Nebraska. I may say that 

 some nurserymen are obtaining pits from this part of Kansas, in the 

 belief that this is out of the limit of the infected district. 



Little Peach , 



Little peach is in some ways a similar disease characterized by the 

 fruit ripening late and very small, the foliage being small, yellowish 

 or red and inclined to roll, the tree dying in two to three years. When 

 the wirv shoots which are sometimes produced as in yellows are pres- 

 ent and the fruit absent, it cannot be distinguished from the latter 

 disease. It was first reported from Michigan in 1896 and has since 

 been found in New York, New Jersey, Connecticut ( ?), Delaware and 

 possibly Maryland. No cause has been discovered but it seems to 

 be contagious. 



The occurrence of this disease along the northern border of the 

 yellows region and the rosette along the southern border would sug- 

 gest that these three diseases which can with difficulty be distinguished 

 at certain times, might be climatic forms of one disease, though one 

 would hardly be rash enough to add such a theory to a question 

 already overburdened with theory. 



A suspected case of little peach reported from New York was found 

 to be due to imperfect fertilization, the pit being small and without 

 kernel. 



Injuries by Low Temperature 



A number of peculiar peach troubles are to be attributed to winter 

 injury and perhaps low temperature is associated with more than 



