I30 



SPRAYING CROPS 



the larva and chrysalis, they are called nymphs. The 

 older nymphs (g) are nearly as large as the full- 

 grown bugs, differing mainly in the absence of wings. 

 In about a week they again moult and come forth as 

 adult bugs. 



Remedies — Chinch bugs are easily killed by 

 kerosene, and by means of improved spraying 

 machines this substance can be used against them to 

 good advantage. The best time to choose in which 

 to kill them is when they are migrating from field 

 to field. 



1^ 



Variegated Cut=worm 



a, larva; b, moth. (After Riley) 



Corn, oats, and other field and garden crops 

 suffer greatly from the attacks of Cut-worms, of 

 which there are many species. They are larvae of 

 medium-sized, night-flying moths, and are thick, 

 naked worms that curl up when disturbed. Most of 

 them feed upon grass or clover w^hen young, becom- 

 ing about half grown by winter time, when they seek 

 the shelter of some log or stone, or burrow into the 

 soil. Here they hibernate, and in spring come forth 



