30 



which were sprayed along with the Gano, as previously stated. Plot 

 3 received the same treatment as Plot 2pexcept that the application on 

 June 8 was omitted. The fruit from one Ben Davis tree of each of 

 these plots, as well as from three unsprayed Ben Davis trees, was 

 examined and classified by counting with respect to codling moth 

 injur}^, and the results are detailed in table 9. 



Table 9. — Com/parison of sound and wormy fruit from three, trees sprayed uilh Bor- 

 deaux mixture and arsenicals. and from three unsprayed trees of the Ben Davis lariety, 

 Eansell orchard, Fordland, Mo., 1906. 



a Treatment on ,Tune 8 omitted. 



The three sprayed trees show an average percent-age of sound fruit 

 of 90.5 as against 29.1 per cent, the average percentage of sound 

 fruit from the three unsprayed trees. This is a gain of 61.4 per cent 

 for the treated trees. 



Jonathan. — In a block of about 400 Jonathan trees used in some 

 spraying experiments in the Hansell orchard at Fordland were three 

 plots comprising 49 trees which received the demonstration treat- 

 ment. These were sprayed with Bordeaux mixture and Paris green, 

 1 pound to 150 gallons, on the following dates: April 19, May 3, ^lay 

 12, June 7, June 26, July 17, and August 11. The first application, 

 April 19, for scab, was without effect in controlling the codling moth. 

 Near each end of the block of 400 trees two adjacent rows were left 

 untreated as checks, comprising in all 70 trees. The trees in this 

 block are about 11 years old and small for their age. The orchard 

 had had but little attention since 1901, and the crop of fruit was very 

 light. 



The effect of the treatments in controlling the codling moth is shown 

 by the figures from 6 sprayed and 6 unsprayed trees presented in 

 Table 10. 



283 



