SPRAYING DEMONSTRATIONS. 279 



Summary — Total Per tree. 



32 sprayed trees I8314 bu. $31.79 5.7 bu. $0.99 



18 unsprayed trees 49i/^ bu. 7.46 2.8 bu. .41 



Difference $0 . 58 



Cost of spraying .12 



Net gain from spraying $0.46 



The Pawnee City orchard has a large per cent of Ben Davis trees, 

 but unfortunately records of yield were obtained from only three 

 sprayed and three unsprayed trees. Figuring the Ben Davis at the same 

 price as Missouri Pippin, these records would indicate that the sprayed 

 Ben Davis were worth an average of $1.44 per tree and the unsprayed 

 ones only $0.82 per tree. The owner of the orchard, however, is of the 

 opinion that in case of the Ben Davis, on the whole, "there was very 

 little difference in yield of marketable fruit on sprayed and unsprayed 

 trees of equal size." On account of this belief and owing to the fact 

 that we have actual records from so few trees, the Ben Davis is 

 omitted from the statement of results given above. 



Nebraska City Orchard. — Records were made from 54 trees, only 

 three of which were unsprayed. (There were 24 other unsprayed trees 

 from which no record was made. They were left on account of their 

 very poor fruit until the last to be picked and a windstorm blew most 

 of the fruit to the ground, so that much of it was fit only for the vinegar 

 factory.) The crop was sold for, a lump sum, and exact prices per 

 bushel are unknown. The buyer reported that the sprayed fruit brought 

 him from 30 cents to 50 cents per bushel and the unsprayed fruit from 

 10 cents to 20 cents per bushel. Net selling prices are here estimated 

 at five cents per bushel for culls and windfalls, 15 cents per bushel for 

 merchantable fruit from unsprayed trees, and 30 cents per bushel for 

 merchantable fruit from sprayed trees. 

 Ben Davis — 



51 sprayed trees — Total Per tree. 



Merchantable fruit 757 bu. $227.10 14.8 bu. $4.45 



Culls and windfalls 197 bu. 9.85 3.9 bu. .20 



Total 954 bu. $236.95 18.7 bu. $4.65 



3 unsprayed trees — 



Merchantable fruit 22 bu. $3.30 7.3 bu. $1.10 



Culls and windfalls 31 bu. 1.55 10.3 bu. .52 



Total 53 bu. $4.85 17.6 bu. $1.62 



Summary — 



51 sprayed trees 954 bu. $236.95 18.7 bu. $4.65 



3 unsprayed trees 53 bu. 4.85 17.6 bu. 1.62 



Difference $3.03 



Cost of spraying .33 



Net gain from spraying $2.70 



