2o8 CROP PRODUCTION 



There are at least a dozen kinds of Cutworms that 

 may attack corn and their injuries are often very serious. 

 They usually live through the winter as half -grown larvae, 

 so they are ready to devour almost any green and suc- 

 culent plant when spring comes. They travel at night 

 from hill to hill, cutting off the stalks just above the 

 ground, and bury themselves in the soil by day. 

 They soon become full grown as larvae, burrow into the 

 soil, and change to pupae, to change again a little later 

 to night-flying moths about an inch long. These moths 

 are attracted to grasslands to lay their eggs, and so it 

 happens that com on sod land is much more likely to 

 suffer from cutworm attack than that which has been in 

 cultivated crops. 



Many other insects are at times injurious to corn. 

 Wire worms attack the roots, Army- worms and grass- 

 hoppers attack the leaves. Corn-worms and Ear-worms 

 attack the ears. These and other pests are more or less 

 local, however, and like most of the other corn enemies 

 are least injurious where good agriculture brings clean 

 culture and regular rotations. 



Nymph Aduk 



GRASSHOPPER 



