571 



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 

 Scale. (Enlarged.) 



San Jose Scale. 



A The male scale. c The half-grown 

 female scales. B In badly infested case. 

 D Showing peculiar red band which it 

 produces on fruit audbranches. (After 

 Fuller.) 



