178 



STATE HORTICULTURAL SOCIETY. 



The following shows in a graphic form the per cent of fruit free from 

 scab on the different lots of trees: 



The materials for the different mixtures cost as follows: 



Potassium sulphide 40 cts. per lb. 



Soda hyposulphite 6 " " " 



Copper carbonate 60 " " " 



Carbonate of soda 5 " " " 



Copper sulphate 10 " " " 



Ammonia 85 " " qt. 



The chemicals were purchased in small quantities at the drug stores, but 

 had they been obtained in bulk as would be required for an orchard, the 

 price would have been from one third to a half less. 



The trees selected for the experiment were quite large and the amount 

 of the fungicide required was about twice as great as for ordinary trees. 



Under good conditions the trees can be sprayed for from one and one 

 half to two cents, for the cost of men and team. In most sections of the 

 country it is desirable to spray the trees, with arsenites for the destruction 

 of the codlin moths. This should be done just after the blossoms droj), 

 and if the fungicide is added to this solution, there will be no extra cost for 

 its application. 



If either of the copper solutions are used, experiments made this year in 

 addition to the above lead me to believe that, if the spring and early sum- 

 mer are comparatively dry, three applications will be found sufficient. 

 The first should be made at the same time the arsenite is applied, and the 

 others at intervals of four weeks. 



