New York Agrioultukal Experiment Station. 213 



From these records it appears that where the trees were sprayed 

 the average yield per tree of picked fruit was increased 44 per 

 cent, the marketable drops increased 8 per cent and the waste 

 decreased 81 per cent. The total yield of marketable fruit as re- 

 corded in pounds was 45 per cent greater where the trees were 

 sprayed than where they were not sprayed. The extra cost of 

 picking, packing and hauling to market would be, in this case, 

 13 cents. With the apparatus used by Messrs. Maxwell & Bros, 

 the cost of spraying would be 8 cents per tree, counting the appli- 

 cations which were actually made, i. e., two applications for six- 

 teen trees and three applications for thirty-two trees. Thus the 

 extra expense of securing and putting on the market an increased 

 yield per tree of 24.48 lbs. of fruit was only 21 cents. So it ap- 

 pears that spraying for leaf spot in this instance secured an av- 

 erage increase of 24^ pounds of marketable fruit per tree at a cost 

 of less than one cent per pound. 



TREATMENT OF THE DISEASE ON BEARING CHERRY 



TREES. 



The experiments which have been tried by this Station during 

 the last two years for preventing the leaf spot on bearing cherry 

 trees have not met with very encouraging results. It was stated 

 in Bulletin 98 that in 1895 the treatment injured the foliage. 

 Generally speaking the eau celeste treatment caused more injury 

 than did the Bordeaux mixture, although there was one exception 

 to this in which Reine Hortense was more injured by the Bor- 

 deaux mixture than by the eau celeste. 



