FOOD SUPPLY 55 



egg plant, both of which are species of the same genus, al- 

 though it occasionally affects tobacco. On the other hand, 



FIG. 27. Heliothis obsoleta, variously known as the cotton boll-worm, corn ear-worm, 

 tobacco bud-worm, etc. Moth is shown above; below, the larva feeding in a cotton boll. 



the tomato is frequently injured by a large caterpillar known 

 as the tomato fruit-worm (Heliothis obsoleta} (Fig. 27) which 



