4 FARMERS’ BULLETIN 650. 
and limbs will present an ash-gray appearance, and on closer exami- 
nation will be found thoroughly inerusted with the scales, which, 
when scraped with a knife, will produce a yellowish, oily fluid. 
Fic. 3.—Appearance during summer of peach tree 6 to 7 years old badly injured by the San Jose 
scale. (Original.) 
When the scales are abundant on the tree the foliage also will be 
thoroughly infested, giving it a spotted and diseased appearance 
readily observable some feet away. 
