148 



The Canadian Horticulturist. 



what proportion of the crop is saved by spraying. A careful experiment was 

 made on one occasion, at the Geneva Experiment Station, N. Y. The trees 

 were mostly Fall Pippins,, and every alternate tree was treated twice in the month 

 of June, first about the 3rd, and then again about the middle. The total number 

 of apples was carefully counted, also the total number of sound and of wormy 

 apples, and the percentage of wormy apples was carefully estimated for both 

 sets of trees. The result showed 13 per cent, of wormy apples on the sprayed 

 trees, and 35 per ceut. of those not sprayed. This would amount to 22 barrels 

 out of a hundred saved by spraying ; and estimating the value at $1 per barrel, 

 the gain would be somewhere about $22 per acre of orchard. 



Judging from my own experience, I do not believe that this estimate is 

 too high. 



Fig. 943. — Aylmer Pdmp. 



While packing my apples and pears last season, I was more than ever con- 

 vinced of the great benefit of spraying with Paris green. In some portions 

 inaccessible to the waggon, this treatment was neglected, and, as a result, an 

 immense crop of Codling moths was harvested, and innumerable apples 

 wasted ; while those trees carefully treated were almost free from this mischief- 

 maker. And that is not the only benefit ; indeed, quite as important is the 

 perfection of form of the sprayed fruit. A Duchess apple tree always bore 

 knotty fruit previously, but since being treated by Paris green its fruit has been 

 perfect. 



