AGRICULTURAL EXPERIMENT STATION. 



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Solution A. 



414 



247 



145 



22 







59. 7 94 7 



Sprayed twice,— May 11 



and June IS). 



Solution B. 



461 



133 



232 



91 



5 



28.9J9.2 



Sprayed twice, — May 22 



and June 22. 



Check 



474 



35 



191 



219 



29 



7-447- 6 



Not sprayed. 







430 



45 



196 



163 26 



10 4'56.0 



" 





It will be noticed that there is a decided difference between the 

 unsprayed trees and the trees sprayed with either solution. The 

 least difference, that between the best check tree and the tree 

 spi'ayed with copper carbonate, was 18.5 per cent, of fruit abso- 

 lutely free from scab, and 23.2 per cent, of fruit which would be 

 classed as "No. 1." 



It will also be observed, that in this instance the eau celeste gave 

 better results than did the copper carbonate in an orchard where 

 the efficiency of both might well be tried. Definite conclusions 

 should not be drawn from results obtained with so few trees ; but 

 it may be seen that the results correspond very nearly to those in 

 the first table. The per cent, of fruits absolutely free from scab 

 is much larger on the tree sprayed with eau celeste, while those 

 but slightly attacked preponderate on the other ; thus bringing 

 the percentage of salable fruits up well toward the first. 



When it is considered that the cost of spraying a single tree is 

 only about three cents for each application, the figures given 

 above are very significant. 



As before stated, most of the work in Mr. Moore's orchard, 

 where methods of application and the merits of different solutions 

 were under study, was of no value. A few trees in an old 

 orchard near the house were sprayed in such a manner, however, 

 that it is possible to get some idea of the relative value of 

 spraying. The treatment was not continued during the season, 

 as the trees were not included in the original plan of the 

 experiment. 



Two rows in an orchard perhaps forty years old, were sprayed 

 on May 21, and June 12, with carbonate of copper in suspen- 

 sion — 2 ounces to 30 gallons water — and Paris green, 1 pound to 

 250 gallons. In an adjacent row, the trees were sprayed once, 

 June 15, with the ammoniacal solution — solution A. As seen in 



