228 



STATE BOARD OF AGRICULTURE 



It seems likely that it will be possible to extend the interval between 

 treatments without losing a reasonable insurance against attack and 

 perhaps the same treatment will protect from other borers of the trunks 

 and limlbs of various trees. 



CODLING-MOTH SERVICE. 



The experiment dealing with the setting of the date for the August 

 spray for the second generation of codling-moth has developed into a 

 regular service. The plan seems to work out well enough so that the 

 apple growers who depend on our data are satisfied and convinced that 



Fig. /) — So-called "side-worm" work, due to codling moth 

 The apple was entered late in the season, but the larva either died or stopped work before penetrating 

 deeply. 



Fig. 6 — Exit hole of codling moth 



