4 FARMERS BULLETIN 872. 



of world need it becomes doubly necessary to put forth every effort 

 to reduce these losses to a minimum. 



CHARACTER OF INJURY. 



The character of attack on all the principal crops affected is 

 similar. The caterpillars usually bore into and feed within the 



Fig. 2. — Young corn plant showing injury to growing tip by bollworm. 

 (Quaintance.) 



plant tissue. The first damage to corn is caused by boring into the 

 bud and eating down into the tender leaves as they unfold. (See 



