ECONOMIC ENTOMOLOGY. 



17 



looking head, and black jaws." The presence of the larva 

 is readily detected by the exudation of gum. 



Remedies. The larvae may be sought for and killed, 

 directly. Hot water is recommended by many. In using 

 it, the dirt should be scraped away from the roots, and the 

 water poured on hot enough that it will not cool before 

 reaching the grubs. 



A wash of carbolic acid and soap suds is also useful. 



By far the best method, however, is to mound up the 

 ground about the trees to the height of a foot or so, which 

 will prevent the female from laying her eggs. 



THE STALK-BORER. 



(Gortyna nitela. Gueneo.) 



This larva may be easily distinguished because the stripes 

 which on most cut-worms run the whole length of the body, 

 are on the Stalk-Borer interrupted for four segments. 



Stalk-Borer and Moth. 



Fig. YZ. 



It hibernates as a moth, which comes forth early in 

 spring and lays its eggs on blue grass and young grain. 

 The young larvae often do great injury by eating off the 

 terminal blades of young oats. 



Pupating in the ground in August, the imagos emerge 

 by the latter part of August or the first of September. 



