406 Report of the Horticulturist of the 



them were English Morello and the rest were Montmorency Ordi- 

 naire. The only fungicide tried was the Bordeaux mixture of 

 the 1 to 11 formula. 



The season was not favorable for the development of the leaf- 

 s])oi, so that the foliage generally kept in healthy condition 

 throughout the season of 1896, and but little difference was seen 

 between the foliage of the sprayed trees and that of trees which 

 were not sprayed. In October a few of the sprayed trees showed 

 more yellow and fallen leaves than did sprayed trees which stood 

 near by, but the difference was not sufficient to support any con- 

 clusions as to the comparative merits of the different methods of 

 treatment. 



Foliage not injured by spraying. — Contrary to the experience of 

 1895, the sprayed foliage in 1896 showed no injury from spray- 

 ing. The injury which followed the spraying with Bordeaux 

 mixture in 1895 appears to be exceptional. It is difficult to find 

 any theory which offers a satisfactory explanation for it. The 

 tree which was literally drenched with the spray in 1896, to see 

 whether heavy spraying would result in injury to the leaves, 

 showed no bad results from the heavy spraying, but held its 

 foliage in good condition throughout the season. 



Fruit spotted by the spray. — In these experiments the first treat- 

 ment was given May 14 soon after the blossoms had fallen. The 

 following treatment was given May 25 in one trial. May 29 in 

 another and June 3 in another. In all cases when the fruit 

 ripened it showed spots of Bordeaux mixture as a result of the 

 second spraying, although quite a good deal of rain fell during 

 nearly two months which elapsed from May 25 till the fruit 

 ripened. 



Summary. 



The results of these attempts to control the leaf-spot and other 

 fungous diseases on bearing cherry trees by spraying with Bor- 

 deaux mixture and eau celeste are summarized below. 



(1) On orchard trees of Montmorency si>rayed with Bordeaux 

 mixture May 14, May 29 and June 15, 1895, only a slight amount 



