INSECTS INJURIOUS TO SWEET CORN 20/ 



and asparagus are suggested as alternate crops. It does not 

 seem possible that the insect could be reached with insecticides 

 with profit. Kerosene emulsion or bisulphid of carbon, how- 

 ever, should be tried. 



This brings us to the subject of the insects injurious to the 

 ears. Of these the corn-ear worm is the most important. 



The Corn-ear Worm {Helio- 

 this obsolcta Haw.). — The 

 maturing ears of corn and 

 pods of beans and cowpeas are 

 often found bored full of holes 

 and the seed within devoured. 

 The insect most often con- 

 cerned in damage of this na- 

 ture is figured herewith. It is 

 a well known enehiy of corn, 

 cotton and tomatoes, whence 

 it has received the vernacular 

 names corn-ear worm, boll- 

 worm, and tomato fruit worm. 

 It is a species of wide distribu- 

 tion and destructiveness, but 

 whether indigenous to this 

 country or imported is not 



known. In addition to the F'S 1 32 —Corn-ear worm (//e/zo/tooiso/e/a 

 ... . Haw ) and characteristic injury to ear of 



crops mentioned, this species ^,,„. (Ouamtance, U. S. Dept. Agr.) 



injures tobacco. pumpkin, 



squash, melon, pepper, okra and other vegetables. Even if only 

 a single hole is made in an ear of corn, the damage is apt to be 

 considerable, as the remainder is likely to become more or less 

 decomposed and access is afforded to other insects and to rain. 

 The same is true of the injuries by this insect to other fruits, 

 to tomatoes, beans, etc. 

 The adult moth is ocher yellow, more or less variegated with 



