17 



The caterpillars pupate beneath the surface of the ground, and 

 those of the second brood pass the winter in the pupal state. The 

 moth (Fig. 8, e and/) expands about an inch and a half, and varies 

 in the color of its body and fore wings from yellow to olive green. 

 A prominent dark spot is usually present near the middle of the wing. 

 The hind wings are much lighter colored, with a broad dusky baud 

 around the outer margin enclosing a large light spot near the middle. 



The damage done by the Corn Worm is chiefly to corn in the ear. 

 The caterpillars gnaw through the husk and devour the kernels. 

 Their injuries cause more or less sap to exude, which, fermenting, 

 often molds and spoils the entire ear. Tomatoes are often found 

 with the caterpillar eating inside of the fruit. 



Ploughing infested fields very late in the fall to break the cocoons 

 of the hibernating pupae and thus expose them to the killing influence 

 of the frost will do much toward keeping this insect in check. The 

 caterpillars in infested ears of corn should be sought for and 

 destroyed. 



THE RED HUMPED APPLE TREE CATERPILLAR. 



(Edemasia concinna (S. & A.). 



This insect is a common one nearly every year, but was more than 

 usually abundant during the past season. 



Fig. 9.— Red Humped Apple Tree Catekpillar. (After Saunaers.) 

 The eggs are deposited in a cluster of a hundred or more on the 

 under side of a leaf of the food plant during July. The caterpillars 



