No. 4.] FUNGOUS DISEASES. 101 



Outfit, complete, $16 40 



Labor in cleaning up orchard, one man for two clays, 

 One winter treatment (copper sul[)liate), ..... 

 One early treatment (strong Bordeaux), ..... 

 Three summer treatments ($10.47, $12.48, $14.99) (strong Bor- 

 deaux and Paris green), 



One late treatment (half-strength Bordeaux), .... 



Total cost, 190 trees, $81 88 



Cost per tree, including outfit, . $0 43 



Cost per tree, not including outfit, 35 



Subtracting this total cost from the gross profits leaves a 

 net profit from 190 sprayed trees of $l,OG7.(32, or $5.fil per 

 tree, over those not sprayed. It is furthermore interesting 

 to note the individual differences between sprayed and un- 

 sprayed fruit. According to observations made at the Cor- 

 nell Experiment Station, one bushel of King apples from a 

 sprayed tree contained 202 apples, averaging 4 ounces in 

 weight. A bushel from an unsprayed tree of the same 

 variety contained 317 apples, averaging 2^ ounces in weight. 

 The sprayed fruit, then, shows a very marked increase in 

 size and weight over the unsprayed, owing to the healthy 

 foliage of the sprayed tree. 



As to the keeping quality of sprayed apples, — a most 

 important factor, — an experiment of my own is striking. 

 Three years ago, I stored two barrels of the same variety 

 of carefully selected apples, one from a sprayed tree, the 

 other from one not sprayed, in a cool, dry cellar. On 

 November 1 the unsprayed apples showed signs of shrivel- 

 ling and decay, while the sprayed fruit was as firm and 

 plump as at first. By January 1 the unsprayed apples were 

 completely ruined ; the others were still sound, and remained 

 so until February. 



If it be true that " figures cannot lie," those which I have 

 given present strong testimony in favor of spraying. I do 

 not, however, wish to give the impression that such large 

 profits will accrue every year, or even in the long run. An 

 exceptionally favorable location, a high state of cultivation, 

 judicious pruning, the selection of resistant varieties, — 

 these and other factors all unite to diminish the profits 



