32 



to be most efficient, to have the spray enter the calyx, and 

 it is evident that this is impossible if sprayed from the wind- 

 ward side, beaause all the petals of the blossoms will be turned 

 away from the sprayer. It will therefore be necessary to spray 

 against the wind directly into the calyx, driving the liquid 

 under comparatively high pressure from a coarse spray nozzle. Of 

 course it would not spray thus against a heavy wind^for most of 

 the liquid v^ould not reach its destination any way, but would be 

 blovm back and lost. I*- would be better to wait for the wind to 

 subside. 



In summing up the matter of spraying, ti might be v/ell to 

 append a calendar for spring spraying which v/ould be universally 

 applicable for the above-mentioned pests, and only subject to 

 slight modifications in time of application according to varia- 

 tions in season and weather. 



