176 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 3 



spraying was not as thorough as that at Poughkeepsie. The result is 

 shown in a slight lowering in the percentage of perfect fruit. 



A study of the wormy fruit gives some interesting data, since it 

 was found on plots 1 to 3, that 10% to 18.36% of all the wormy 

 apples were entered at the end, an average of 14% end wormy. 

 Similarly, in the case of plots 4 to 6, the variation was from 9.94% to 

 12.50% ot an average of 11.50% of end wormy apples in the total 

 infested. Comparing these percentages with the 69.37% end wormy 

 of the infested apples on the two check trees, it will be seen that the 

 major proportion of the codling moth larvae destroyed, must have 

 l)een killed in or about the blossom end because of the enormous 

 reduction in the sprayed fruit of the number of end wormy apples. 

 There is a slight percentage in this respect in favor of the coarse 

 spray with the Bordeaux nozzles. Duplicate experiments in another 

 orchard at Kinderhook gave 17.51% to 18.9% end wormy fruit on 

 the sprayed trees, while on the check trees there were 37.28% end 

 wormy fruit. It is evident from the above that the spraying results 

 in the marked reduction in the percentage of end wormy fruit, and 

 that this benefit is secured in large measure at least, without regard 

 to the amount of poison driven into the lower calyx cavity. 



The results given above would seem to justify, so far as the Hud- 

 son River is concerned, the belief that one thorough spraying with a 

 Vermorel nozzle within a week or ten days after the blossoms fall, 

 will result in protecting a very large percentage of the fruit from 

 ■codling moth injury. 



Mr. Rumsey: I have a set of photographs with me showing the 

 :final results of a test we made at the West Virginia Agricultural 

 Experiment Station to determine the relative merits of a mist spray 

 and a coarse, high pressure spray for the codling moth. Before 

 passing the pictures I will give some details of the experiment. Fifty- 

 three Ben Davis trees were used in the work. Twenty-four trees were 

 sprayed four times with three pounds of arsenate of lead to fifty 

 gallons of Bordeaux, using a "Vermorel" nozzle with a pressure of 

 about one hundred pounds. The same number of trees were sprayed 

 once with one pound of arsenate of lead to fifty gallons of water, 

 using a "Bordeaux" nozzle, connected to the spray rod by an attach- 

 ment bent at an angle of 45°, with a pressure of two hundred to two 

 hundred and fifty pounds. The spray was applied just after the 

 petals fell. To the trees which received four sprayings the last spray 

 w^as applied July 21. Five trees of the same variety were reserved 



