ECONOMIC ENTOMOLOGY. 13 



face; while others travel around during the night, doing 

 great injury by cutting off young herbs near the roots. 



When full grown they descend further into the ground 

 than before, where they pupate, emerging in three or four 

 weeks, in the winged state. The eggs are generally depos- 

 ited on low plants, and when the young larvae hatch, they 

 go down into the ground and feed upon roots. 



Remedies. The Cut-worms have many natural ene- 

 mies such as the robin, the black-bird, the cat-bird, domes- 

 tic fowls, some species of ground beetles, (Carabidce) ; the 

 toad, etc. 



Numerous parasites also infest them. Among the arti- 

 ficial remedies, making holes in the ground in the evening 

 with a pointed stick, and going around in the morning and 

 thrusting the stick again into the holes, will destroy any 

 Cut-worms that may have fallen into the holes during the 

 night. 



Many will seek shelter at the approach of dawn under 

 leaves and rubbish lying on the ground, these may be found 

 and killed. 



Late plowing is good. 



The Cut- worms have a great fondness for clover, and 

 little bunches of it, poisoned with arsenic, and placed in 

 the field at night will kill many. 



THE CORN WORM. 



{Heliothis armiffera. HUbner.) 



This insect is very injurious to the cotton in the South, 

 and there it is called the Boll-worm, because it feeds on the 

 cotton boll. It hibernates as a pupa, a few inches below 

 the surface, in an oval cell lined with silk. In the latitude 

 of Illinois it is two or three brooded, the number increasing 



