130 Agricultural Experiment Station^ Ithaca, N. Y. 



It is interesting to note the difEerence in the degree to which the 

 varieties were affected. The Niagara suffered most from fruit rot, 

 every plum having been destroyed, for a good crop set early in the 

 season. Yarieties whicli are followed by leaders produced no fruit. 

 Imperial Gage lost about one-Iialf of the crop from this disease, 



16.— German prune, sprayed. 



while Bavay's Green Gage and Lomb;ird lost about thirty per cent. 

 In the other varieties the loss on the check trees was less severe. 

 l!^o variety of the sprayed trees lost more than twenty per cent, by 

 rot, and this am 3unt occurred only in the case of the Jefferson, it 

 being five per cent, less than the check. I can not explain this 

 loss. The loss in the other varieties was only five or ten per cent. 

 The foliage showed some difference when the first notes were 

 taken but not so much as later in the season. Fig. 16 represents 

 a tree which was sprayed, wliile Fig. 17 represents another of the 



