The Chinch Bug and Its Control. 17 
many of which occupy relatively sheltered places. ‘The lower pres- 
sures are suitable for young wheat, or until the crop is half grown, 
Fic. 6.—Spraying chinch bugs in wheat. 
or under very thorough application; the higher pressures are efficient 
everywhere, and are especially necessary for high wheat and rapid 
work. 
50663 ° —21——3 
