MAINE AGRICULTURAL EXPERIMENT STATION. I914. 39 



that it cannot be wet readily and consequently refuses to stay 

 in suspension. This was overcome with the fine sulphur by 

 first wetting it with a small amount of dilute glue solution. It 

 would then stay in suspension long enough to be applied to the 

 trees. 



Again, extremely satisfactory results with reference to scab 

 control on both foliage and fruit was obtained with the paste 

 and powder used the season before, but the latter in combina- 

 tion with the usual amount of arsenate of lead, although reduced 

 three-fourths pound to 50 gallons of water on the recommenda- 

 tion of the New England selling agents of the compound, caused 

 fully as much defoliation as the previous season. This year 

 leaf injury was noted even before June 6, the date of the second 

 application of the spray. Defoliation began soon after this and 

 in ten days, from one-third to one-half of the surface of the 

 ground under the trees was covered with fallen leaves. By 

 the last of June fully one-third of the leaves had fallen from 

 the trees sprayed with this material. 



No spray injury was observed throughout the season, but 

 some scab developed on the leaves of the trees which were 

 sprayed with the extra fine sulphur. It did not control scab so 

 well on the fruit as did standard dilution lime-sulphur or the 

 two compounds already mentioned, but showed enough fungi- 

 cidal value to warrant a repetition of the experiment. 



