134 IMDIAN CORN CULTURE, 



by eating the poisoned grass. This should be 

 done just at nightfall. 



Stalk borer {Gortyna nitela, Guen). A full- 

 grown worm is a little over an inch long, bluish- 

 brown above, with three white lines on the 

 back, the central one continuous, the others 

 interrupted for a considerable space at the 

 middle.* This worm is the product of eggs 

 laid by a moth on grass or early-planted grain. 

 When the eggs hatch the worm crawls down 



via 18.— Stalk Boeer, Gortyma MiWa, Guen. i, motli;2,woim. (After Riley.) 



into the stem of the plant. To prevent their 

 ravages, Webster recommends f one ounce of 

 pyrethrum powder in two gallons of water, or 

 one part crude carbolic acid to 100 parts water. 

 Spray or sprinkle the young plants so this 

 liquid will run down among the unfolded 

 leaves. 



Chinch hug (Blissus leucopterus, Say). This is 

 a true bug that is about three-twentieths of an 

 inch long and one-third its length in breadth. 



* F. M. Webster: Bulletin 3, Purdue University, April, 

 1885. 



t Report Indiana State Board of Agriculture, 1885, p. 192. 



