CONTROL OP GARDEN DISEASES AND INSECTS. 



67 



to improper storage conditions. Keep sweet potatoes in a moder 

 ntely cool and dry place after digging. See Farmers' Bulletin 714. 



The insects which attack the potato and the eggplant injure the 

 tomato to a less extent, and tomatoes suffer greatly from other pests. 



TOMATO nORNWORMS. 



The tomato hornworms ^ (fig. 78) are large green worms, sometimes 

 called tomato worms or tobacco worms, as they feed about etjually 

 well on both plants. They are the larvae, or young, of large sphinx 



-One of the tomato hornworms {Phlegetfiontius sexta) : a. Adult moth ; h. hirva ; 

 c, pupa. (Howard.) 



moths of two species, which are very similar in habits and distribu- 

 tion. These insects produce two broods, and when they begin to 

 mature ttiey cut all the leaves from tomato plants. Growers should 

 be on the lookout for the first as well as the second brood They 

 appear at various times, according to the locality. 



Control. — Hand picking can be practiced, but it takes an experi- 

 enced eye to detect these worms when they are at rest. When 

 feeding they are more easily seen and can be destroyed readily. A 



1 PhlegetJiontius quinqncmaculata Haw. and P. sexta Job. 



