192 



AGRICULTURE ON THE PACIFIC SLOPE 



applied at the right time. (California Experiment Station, 

 Bulletin 144; Utah, 65.) 



Cutworms and army worms. The same 

 insects are known by both names in Cali- 

 fornia. They spend the winter as half-grown 

 worms and begin to feed in the spring. 

 They attack annual plants at the surface of 

 the ground. Or they attack trees and vines 

 by climbing up to the buds and destroyin 

 them: in this case they may be kept in 

 check by poisoned food placed about the 

 base of the plant. 



The moths are usually dark-colored, and 

 of peach worm. ag th fl b ni ht th are se idom seen. 



(Natural size.) , , . - A 



They lay their eggs on the stems of grains 

 or grasses near the ground. The young worms hatch out 

 and feed near the ground during the night, and hide them- 



FIG. 107. Burrow 



FIG. 108. Burrow of a peach worm. (Enlarged.) 



selves by day. Sometimes they become very numerous. 

 When their food becomes scarce, they leave the fields in 



