April, ’24J 
wakeland: alfalfa weevil control 
33a 
MAY JUNE 
Fig. 10.—Two-spray application, southwestern Idaho. Sprayed May 24 and 
June 7. Plots cut June 27, 1923. Amount of injury on sprayed plot was slight 
compared with check. Note decrease of larvae on sprayed plot following each 
application and comparatively small proportion of early-season larvae. 
western part of the state, however, the first reports following a demon¬ 
stration were favorable, only to be followed by others that spraying 
had not proven successful. In several communities in that part of 
the state spraying had been tried by individuals, the knowledge that 
spraying by them and by the University had not proven successful had 
become common, and it is little wonder that others were loath to try it. 
For experimental work in southwestern Idaho, which has probably" 
proven to be the worst injured portion of the United States, a large field 
of alfalfa was selected in which growth and cultural conditions were as 
