8 



Eesult : 



Per cent. 



First quality 50 



Second do 25 



Third do 25 



Eow 3. — Treated with 



Copper sulphate 1 lb. 



Ammonia .* 1^ pts. 



Water 22 gals. 



This solution was too strong, injuring the leaves to such an extent 

 as to cause h.alf of them to drop within ten days from .date of 

 application. A second and weaker application had the same eifect. 



Row 4. — Treated with 



Copper sulphate 1 lb. 



Water 22 gals. 



This had practically the same eifect as the above, and was dis- 

 continued after a second application. It would seem with this result 

 before us, that the ammonia did not increase the injurious effect of 

 the copper sulphate. 



Eow 5. — Treated with 



Hyposulphite of soda lib. 



Water 22 gals. 



Xo beneficial effect was noted, though the experiments on this 

 row were rendered useless by severe inroads of the leaf-crumpler. 



Eow 6. — Untreated. 



Per cent. 



First quality 24 



Second do 26 



Third do 50 



The time occupied in making each application, covering the 70 

 trees, was about 3^ hours with one man and boy and a horse. Of 

 course, if the same mixture were used on the whole lot without any 

 change, the time taken in making the application would be greatly 

 reduced. As the cost of the application is much increased by the 

 addition of ammonia in the copper carbonate mixture — while the 

 results in the experiments cited above do not seem to warrant its 

 use — it would appear that the copper carbonate and water mixture 



