REPORT OF THE STATE ENTOMOLOGIST I909 41 



which ^Ir Hart thought might be due to bordeaux injury, in- 

 duced to some extent possibly by dry weather. This yellowing 

 was much more evident on the experimental trees of this plot 

 than on the trees in the adjacent plot 3. 



Under date of June 17 Mr Hart reports a very satisfactory 

 growth of fruit though aphids increased rapidly. The first week 

 in June the infestation was restricted almost exclusively to the 

 fruiting trees, and started upon the whorls of leaves under fruit 

 spurs. There was the usual stunting and malformation of the 

 fruit. He found that the infestation was more severe on the 

 4 lower experimental plots than in other portions of the orchard. 

 July 13 he states that the aphids had almost complete^ disap- 

 peared and while they affected the uniformity of the setting, 

 there was still much good fruit. The orchard, including the 

 experimental portion, was plowed in June, fertilized broadcast 

 with 600 pounds per acre of a fertilizer made up of 400 pounds 

 of ground bone, too pounds of 2-9-6 fertilizer and 100 pounds 

 of sulfate of potash. It was harrowed several times and seeded 

 on the 6th with large and crimson clover and cow horn turnips. 

 He saw at this time a little codling moth work but not as much 

 as last year. September 9th he states that the trees sprayed 

 the third time had lost much of their foliage. The Baldlwins appar- 

 .ently lost half of their leaves and the Spys over half [pi. 8, 

 fig. 2], due probably to the bordeaux mixture and not to the 

 poison. The remaining foliage appears healthy and the fruit is 

 growing. A larger proportion of the foliage was shed on the 

 upper plots than on the lower ones, especially on the Baldwins. 

 The leaves of the latter turned yellow and dropped, while those 

 of the Spys dropped without discoloring. 



Experimental data 



The following tables give the records for the individual trees. 

 Some 100,000 apples were carefully, handled one by one and 

 classified^ as will be seen by reference to the following data. 

 September 13 and 14 the dropped apples under all the trees were 

 carefully gathered and later, October 5 to 7, the remaining fruit 

 was picked and classified. It will be seen by reference to the 

 detailed ta'bles, that the dropped fruit from the various sprayed 

 plots gave from 14.91 to 26.67;^ of wormy fruit, while the two 

 check trees had 73.91 and 81.02;/, respectively, of wormy fruit. 

 These figures are mostly interesting because they show what 

 a large percentage of the wormy fruit drops before picking time. 



