I4 NINETEENTH REPORT STATE ENTOMOLOGIST OF MINNESOTA—IQ22 
tion to the bordeaux mixture, but in the acre plots a decidedly better 
yield was obtained. Further experimental evidence should be obtained 
in 1923. 
It will be seen from the tables that bordeaux dust, whether applied 
alone or in combination with a nicotine dust, gave no appreciable results, 
in each case the difference between the yield in check plots and in those 
where the dusts were used being approximately the same, or at least 
within experimental error. 
