May 10, 1924 
Two TJnreported Diseases of Stone Fruits 
605 
SUMMARY 
There has been found, on peaches shipped from California, a rot from which 
a fungus similar to Botrytis cinerea has been isolated. It is proved, by inocula¬ 
tion and reisolation, that this fungus is the cause of the disease. The inoculation 
experiments indicate that the fungus is able to penetrate the uninjured skin of 
the fruit. 
There has been found on sweet cherries shipped from Michigan a rot from 
which a species of Alternaria has been isolated. There is no proof that the 
Alternaria from sour cherries is identical with that from sweet cherries, but 
cross-inoculation and reisolation have shown that both strains are pathogenic 
to both kinds of cherries. The inoculation experiments indicate that the fungus 
is unable to penetrate the uninjured skin of the fruit. 
