December, 1909.] the CODLING MOTH. 101 



sprayed, and if two-thirds bore, with the same profit per tree, 

 these would show a profit of $10,000. Two hundred and fifty- 

 parties are known to spray from whom we received no reports, 

 from which 25 may be deducted as being among those hiring 

 their spraying done. It is probable that these growers failing to 

 report have fewer trees and receive less profit, so to be conserva- 

 tive let us credit them with 150 trees each (the average for the 

 state is 70 trees per farm), and that they secured $2 profit per 

 tree on two-thirds of the trees which bore. This would give 

 22,160 trees bearing, or $44,320 profit. Thus the 345 parties who 

 are known probably sprayed 61.657 trees in 1909 securing a total 

 profit of $81,755, on about 100,000 barrels of apples, represent- 

 ing a fourth of the erop^ produeed in New Hampshire in 1909. 

 This profit is possibly somewhat higher than it would be most 

 years, as apples sold from $3.25 per barrel at Boston October 

 25, 1909, while for the last 20 years they have averaged $1.90 

 to $3.25 on the same date; thus, $1.50 per barrel on the tree is 

 probably a fair average price, and were the above profits com- 

 puted on that basis, they would have amounted to $61,695. 



In 1899 there were approximately 2,000.000 apple trees in New 

 Hampshire. Only half of these, or 1,000.000, bear each year, 

 and probably not over one-third of these bear first-class crops, 

 or 300,000. But if these were all sprayed, we would have an 

 annual profit of $450,000 due to spraying alone. This would 

 mean spraying 15 per cent, of the trees in the state, or five times 

 as many as were sprayed in 1909, — 61,657, or 3 per cent. Such 

 a benefit will undoubtedly be secured from spraying within the 

 next five years, judging from the remarkable increase in it dur- 

 ing the last three years. 



This Station commenced a definite campaign for spraying in 

 1905 and Bulletin 131 was published in April, 1907. The 

 increase in spraying is by no means all or mostly due to the 

 work of this Station, as manufacturers and agents of spray 

 pumps and insecticides have shown the people its value. Speak- 

 ers and exhibits at our State Horticultural Society have shown 

 its value, and, most important of all, the growers who have 

 sprayed have shown such results as to convince their neighbors. 

 But it may be fairly claimed that the work of this Station has 

 furnished at least the primary impetus to which the greatly 

 increased amount of spraying in 1908 and 1909 was due. 



We were interested, therefore, to determine just what profit 

 had been derived by those who have sprayed only in 1908 and 

 1909. In 1909 these formed 60 per cent, of those spraying, so 

 that 60 per cent, of the previously computed profit, or $49,053, 



'The New England Homestead e.stimates 40<),000 barrels for New Hampshire in 

 1909 — certainly a generous estimate. 



