April, '13] felt: CODLING MOTH SPRAYING 173 



Inasmuch as spraying results have generally been based upon one 

 or the other of the ratios given we thought that it might be of interest 

 in recording our results -to present both percentages. We have found 

 that the results would be quite different in some cases. Both figures, 

 however, show that the insect pests of this orchard were controlled 

 by two sprays, and though no conclusions could be drawn from one 

 orchard or from one season's work, studies made in many orchards 

 scattered over the southern portion of the state lead us to believe that 

 in the majority of cases two sprays are sufficient for the control of 

 such insect pests as we have in Kansas. 



As one who has looked at the problem from the commercial side we 

 would say that the entomologist should recommend as few sprays 

 as possible for the best returns, for the long spray calendar usually 

 recommended has a tendency to discourage many of our small orchard 

 holders from attempting to spray at all. But in the last analysis the 

 recommendations should be specific rather than general. 



President W. D. Hunter: This paper is before you for discussion. 



A Member: What time during the year did you spray for ''bitter 

 rot"? 



Mr. W. B. Hungerford: W^e only made one spray solelj' for 

 "blotch" and none for "bitter rot alone." 



Mr. T. B. Symons: Is Bordeaux better than lime-sulfur? 



Mr. W. B. Hungerford : Yes, but there is a dift'erence in seasons. 

 Last season we had some injury from lime-sulfur. 



President W. D. Hunter: We will proceed with the next paper 

 by Dr. Felt, on "The Codling Moth and One Spraying in the Hudson 

 Valley." 



THE CODLING MOTH AND ONE SPRAYING IN THE 

 HUDSON VALLEY 



(Abstract) 

 By E. P. Felt, Albany, N. Y. 



Spraying experiments for the codling moth have been conducted 

 during the past four seasons in Hudson valley orchards. In each 

 instance the work was planned along practical lines so far as possible 

 and special pains taken to secure only fairly representative trees in 

 orchards kept in a good horticultural condition. Invariably the 

 spraying outfit and the men on the place were employed, the entomol- 

 ogist contenting himself simply with explaining his methods and 

 insisting upon reasonable thoroughness in treatment. The experi- 

 ments were conducted in four well separated localities, while the 



