6 
by wetting them with boiling water, or with kerosene emulsion diluted 
about four times. Frequently they may be collected by hand or 
shoveled up, and burned. - 
Remedial treatment is much simpler in the northern area of the 
range of this insect, where it is single-brooded, and becomes more 
difficult in the southern districts, where the number of broods is 
doubled and the appearance of the insect becomes somewhat irregu- 
lar, continuing practically throughout the summer. 
Approved: 
JAMES WILSON, 
Secretary of Agriculture. 
WasuineTon, D. C., August 31, 1908. 
[Cir. 8] 
O 
