O13 
apple, pear, and peach. This scale is not striking in appearance, 
and would easily escape notice in an orchard. When once intro- 
Female of the San Jose Scale. 
duced into an orchard its spread is very rapid, and if not checked 
will soon cause the death of the plants attacked. It attacks stem, 
Young larva of the San Jose A The male scale. 
Seale. (Enlarged.) female scales. 3 In badly infested case 
D Showing peculiar red band which it 
produces on fruit and branches. (After 
Fuller), 
-c The half-grown 
