696 Report oF THE HORTICULTURIST OF THE 
Fourteen White Doyenné trees located in another part of the 
orchard, were also selected for the experiment. Six of these 
were treated five times and the remaining eight were left 
untreated for comparison. 
Dates of Spraying.— The first spraying, given to one block of 
Seckels only, was made May 2. When this spraying was 
made some of the fruit buds were bursting, but the leaf buds 
had not as yet shown their first green tips. The same evening a 
rain storm set in and continued through the next day and into 
the following night. | 
The next spraying, given May 10, was applied to all the trees 
designed for treatment during the season and all these trees were 
subsequently treated alike. This was the second spraying for 
the block of Seckels treated May 2 and the first spraying for 
the White Doyennés and for the other block of Seckels. 
When the next treatment was made, May 19, the first blossoms 
were beginning to open. ; 
The next treatment was made May 31, when the last blossoms 
were falling. To each cask of the mixture were now added four 
ounces of Paris green, making one ounce of the Paris green to 
about eleven gallons of the mixture. ‘This was used to destroy 
the codlin moth and other biting insects. | 
The next spraying was made June 12, and Paris green was 
added as before. Paris green was also used with the last 
spraying, which was made June 28. Notes made at this time 
state that the scab spots were more abundant on the unsprayed 
Seckel fruits than on the fruits of the unsprayed White Doyenné, 
but at the close of the season it was evident that the latter were 
damaged by the scab much more than the former, thus showing 
that the scab may continue to develop throughout the summer. 
July 18 it was noted that nearly every fruit on the lower 
branches of the sprayed trees was perfect while on the unsprayed 
trees nearly every fruit was blemished by the scab, some fruits 
being but slightly affected, while others were badly injured. 
This difference between the sprayed fruit and the unsprayed fruit 
became more and more noticeable as the season advanced. 
The top branches of trees twenty-five feet high were not easily 
reached by thespray, and most of the imperfect fruit found on 
the sprayed trees caine from the tops of the tall trees. 
