150 



GARDENING FOR THE SOUTH. 



the comparatively slight natural extension by crawling, 

 by winds, and by the aid of other insects and birds."* 



Tobacco Worm, ok Tomato Worm, or Horn Worm 

 (Protoparse Carolina, Linn., and P. celeus, Ilubn.). — " There 

 are two species of large sphinx moths whose larvae, or 

 caterpillars, eat the leaves of tobacco, tomato and allied 

 plants, including, occasionally, the Irish potato. These 

 caterpillars, from the fact that each bears upon one of 

 the posterior segments of the body a rather stout, curved 



horn, have become 

 popularly known as 

 horn worms. To- 

 bacco growers do 

 not distinguish be- 

 tween the two dif- 

 ferent kinds of horn 

 worms, and for prac- 



Fig. 54— Bruehus pisorum. a, Adult beetle, tical purposes it is 



b, Larva, c, Pupa. All greatly enlarged, not in the least 



Chittenden, Div Ent. U. S. Dept. Agri. Year necegsarv +] ia + +hev 



Book, 1898. J ,. . f 



should distinguish 

 them. The curious brown pupa into which the cater- 

 pillar transforms, which is found under the surface 

 of the ground, and which is at once recognized by the 

 handle-shaped process which issues from the top of the 

 head, is the form from which issues the adult moths. 

 Both of the insects occur more or less abundantly in the 

 tobacco fields over the entire tobacco-growing regions of 

 the United States. In certain localities one species will 

 be much more abundant than the other, and in other 

 localities the numbers will be more evenly divided. In 

 general, it may be said that celeus is the more northern 

 species, while further South Carolina is apt to be much 

 the more common." (Howard.) 



Circular No. 42, Div. Ent. U. S. Dept. Agri. 



