4 FARMERS’ BULLETIN 762. 
. A convenient size of shield is 24 by 30 inches, and of the beater, 14 
by 14 inches. Such a shield can be operated by one man, but better 
results can be secured by two. The petroleum and kerosene must be 
renewed frequently. 
To combat this pest successfully and to prevent losses to his crops 
the grower should apply remedies at the very beginning of an attack. 
If the outbreak covers a large area, all growers in the locality should 
cooperate, as crops may be attacked anywhere in the neighborhood. 
Poultry Netting : To prevent beef plants Touching 
the sficky surface of the ack acc LEE Oa es 7 
I= a en. 
SELEIEEZ-I ISAS a= DIMENSIONS 
JEL EGE | 
CE IETALAS A mea “Depth 4 
FPEIISE LES — Width 30 
A Spa — Length 30° 
Sa «— Back ts made of thin 
boards faced wilh burlap and 
coated’ with crude petroleum 
ond. Kerosene 
ee 
Ends are made of 
1 malerial 
«— Canvas abouf 14°x16" lacked 
fo handle 
Fig. 2.—Sticky shield and beater for destruction of false chinch bugs on flowering beets. (Original.) 
After the adult bugs have collected on a certain area, their destruc- 
tion will usually end the damage by that brood. However, if others 
of the same or of succeeding broods are driven on later by the dying 
of adjacent vegetation, another application of remedial measures will 
be necessary. The more completely the earlier generations in a given 
year are destroyed, the less will be the damage by later generations 
during the same year; and the more thoroughly control measures are 
practiced during any year, the less is the danger of severe outbreaks 
the next year. 
WASHINGTON : GOVERNMENT PRINTING OFFICE : 1916 
3 
