1919.] SUPPOSED CURE FOB FBOGHOPPEES. 15 



itself is not prohibitive ; (4 cents per gallon should be the limit 

 unless extermination is complete). 



In view of the general shortage of labour however, it is doubtful if 

 the method would be applicable on a very large scale. 



The demonstrations so far given by Mr. Glasgow do not prove that 

 his liquid is sufficiently effective in destroying either eggs or nymphs 

 of the froghopper, or the fungi causing root disease. Possibly further 

 demonstrations which he hopes to give next season at a more suitable 

 time of the year may be more conclusive. 



December 16, 1918. 



