26 Farmers’ Bulletin 1223. 
DEVICES FOR POURING OIL. 
When oil barriers are resorted to, it becomes necessary to use con- 
tainers from which a small stream of oil can be accurately directed 
onto the line. A 1-gallon coffee pot serves the purpose fairly well. 
A sprinkling can with the rosette removed is better because of its 
longer spout. In hot weather, when the oil is so warm as to flow 
freely, the spout of the watering can may with advantage be partially 
plugged with a stick of wood. Far more efficient than either of these, 
especially when the groove drag is used, is a two-wheeled truck with 
a 20-quart can mounted between the wheels and fitted with a stop- 
cock at the bottom of one side. The wheels should be set about 18 
inches apart. The operator walks, straddling the line, behind the 
truck. The stopcock is set to supply a sufficient line of oil in the 
Fig. 14.—Five-torch asphalt heater adapted for burning chinch bugs. 
groove. The smoothed path and this method of oiling offer a 
minimum risk of bridging the oil line by knocking in clods or other 
matter with the feet. Such two-wheeled trucks are on the market 
for garden spraying apparatus. Road oil No. 7 or crude creosote 
is considered best for this work. 
TORCHES. 
Gasoline torches, of the type known as the plumber’s torch, are 
sometimes used for burning chinch bugs along dust and oil barriers. 
A special knapsack gasoline torch which has been used in the field 
for destroying trash, and incidentally the pink bollworm in the 
infested areas in the Gulf Region, will also be of value for de- 
stroying the bugs massed along barriers. Neither of these types of 
torch is of much value for burning the bugs in growing crops or in 
stubbles. 
A five-torch asphalt heater (fig. 14), generating a temperature of 
230° F. at the surface of the ground, also has proved inefficient when 
