470 
JOURNAL OF ECONOMIC ENTOMOLOGY 
[Vol. 13' 
and trailer. The trailer was used to transport the sprayers from field 
to field. This saved much time and wear on the sprayers and insured 
their delivery at the desired field in good repair. 
When not moving machines, the trouble man made the rounds of 
the machines operating in his territory for the purpose of repairing 
and otherwise assisting in keeping the machines in operation. 
The field man being relieved of the necessity of attending to these 
details could put in his time locating infested fields. The field man 
was constantly in touch with the trouble man, directing the movement 
of the machines from field to field. 
Method No. 2. This method required more men than Method No. 1, 
since a Sugar Company man was with each company owned sprayer- 
in the field. This man kept the machine in running condition and 
assisted in preparing the poison and filling the sprayer tank. 
The one drawback of this method is the danger of the company 
man becoming poisoned, locally, by constant association with the 
insecticide. 
The field man’s part of the work was the same as that in Method 
No. 1. The machines were hauled from field to field by the farmers,, . 
the next farmer in line arriving in the field an hour or so before he was 
to receive the machine for the purpose of learning as much about its 
operation as possible. 
The relative effectiveness of these methods was practically the 
same. 
A small per acre rental was charged for the use of the sprayer. This 
was usually 50 cents per acre, this amount being just about enough 
to pay for the repairs and labor of overhauling and the trouble man. 
In the case of Method No. 2 this rental was made large enough to 
cover the wages of the special man with each machine. 
The insecticide was purchased by the Sugar Company, delivered to 
the growers at cost and charged to their account to be deducted from 
their pay for beets delivered. 
Work Accomplished. As has already been stated, the preparations 
made to combat the webworm in 1919 were based upon the outbreak 
of 1918 and were altogether inadequate. As soon as the extent of the 
1919 outbreak could be anticipated additional equipment was procured. 
The unusual demand for insecticides and sprayers made the procuring 
of the additional supplies slow and costly. At the close of the season 
the Sugar Company had 303 traction sprayers while the farmers in 
the Great Western territories owned 471. Many of these were not 
secured before the season was well advanced so that the acreage covered 
was not as large as it would have been had the sprayers been on hand 
at the beginning of the season. 
