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JOURNAL OF ECONOMIC ENTOMOLOGY 
[Vol. 17 
Fig. 9.-—One-spray application, southwestern Idaho. Sprayed June 7, 1923. 
Plots cut June 27. Note the large numbers of early-season larvae on sprayed plot 
which were sufficient to cause serious injury. 
spraying was transported on an auto truck. The difference in develop¬ 
ment of the weevil in different localities of the state is very favorable 
to a long demonstration season, and an effort was made to conduct as 
many demonstrations as possible during a season. Conditions that 
favored a long demonstration season were the ones also that made it 
impossible to observe results closely, and the entomologist was rarely 
enabled to return to a sprayed field in time to make observations of 
results obtained. Reports received from county agricultural agents 
and from farmers varied widely and were extremely confusing. Reports 
were that results in eastern Idaho were satisfactory. In the south- 
