SMALL SCALES ON BARK OF TRUNK OR BRANCH 255 



examination such twigs are found to have a scurfy or ashy look, the 

 bark being crusted with hundreds of minute scales, no larger than a 

 very small pin head. If a sliver of the outer bark is cut away, the 

 inner, soft bark will be found to show more or less reddish discolora- 



FiG. 347. — The San Josi- Scak'. Above, natural tsize. Center, enlarged. Be- 

 low, a single scale, enlarged. Original. 



tion. On peach trees the scale is apt to gain a foothold first on the 

 larger limbs, rather than the small twigs. When the scales are quite 

 numerous, they will be found also on the leaves and fruit, as well as the 

 bark. On the fruit of apple, peach, or pear a reddish discoloration 

 surrounds isolated scales. Peach trees frequently are killed by the 



