118 MANUAL OF FRUIT DISEASES 
and Nebraska. Such varieties as the Rhode Island, Fameuse, 
Fall Pippin, Pound Sweet, Maiden Blush and Twenty Ounce 
were damaged seriously by pink-rot under the older methods of 
orchard practice. Therecurrence of such losses, however, should 
hardly be expected under the present conditions and methods of 
management. However, the disease still ranks prominently 
among the minor apple troubles, the fruit being affected on the 
tree and in_ storage. 
The pathogene is fairly 
common in cellar and 
commercial cold storage, 
especially on  scabby 
fruit. 
Symptoms. 
The term pink-rot is 
slightly misleading in 
that the affected tissue 
is not pink. The name 
has arisen from the 
fact that the conidio- 
phores and conidia of 
the pathogene are pink 
in color and stand exposed on the surface of the lesion. Pink- 
rot very commonly follows apple-scab (Fig. 32). Around the 
superficial, velvety scab spot the apple-tissue becomes brown, 
sunken, bitter and rotten. Very early in the progress of the 
disease, the fruiting stalks of the pathogene become evident, 
at first white and then pink. These symptoms were ob- 
served very commonly in the fall of 1915 on scabby Rhode 
Islands, in New York both before and after harvest. The 
decayed areas are circular in outline, and vary in diameter, 
depending largely upon the size of the scab spot which it 
surrounds, and upon the weather conditions. The lesion is 
shallow, the affected tissue firm, corky and dry. Growers 
Fig. 32. — Pink-rot following apple-scab. 
