I90 THE CONNECTICUT POMOLOGICAL SOCIETY. 



win-Williams', Swift's and Vreeland's), two of the powder 

 form (Vreeland's and Devoe & Raynold's), Ortho-arsenite 

 of zinc, and Paris green. 



Determination of Results. In determining the results 

 ■of spraying the apples and peaches, certain of the sprayed 

 and unsprayed trees of each variety were selected, and all 

 or part of the fruit was examined for any spray, fungous or 

 insect injury, and the kinds noted. In this way, during the 

 two years we examined in detail, recording our observa- 

 tions, 153,000 apples and 49,000 peaches. A general exam- 

 ination was also made of the trees from time to time to 

 note any injury or benefit to the foliage, though no statis- 

 tics were gathered along this line. 



Cost of the Sprays. We have compiled data as to the 

 cost of the materials used in spraying. These are based on 

 prices such as the grower would have to pay for the mate- 

 rial in barrel or 100 pound lots, f. o. b., and do not include 

 railroad transportation, cartage, cost of mixing and apply- 

 ing. Bordeaux mixture of the 4-4-50 strength costs 32 cents 

 per barrel, of the 1-4-50 strength, 11 cents per barrel, mak- 

 ing the average cost, for one spraying of the former and 

 two of the latter strength, 18 cents per barrel. The com- 

 mercial lime-sulphur sprays used at a strength of 1^ gal- 

 lons per barrel cost from 17^ to 25 cents, according to the 

 brand used. The self-boiled lime-sulphur, 8-8-50 formula, 

 costs 28 cents per barrel. The miscellaneous sprays having 

 sulphur as an ingredient cost from 16| to 30 cents, accord- 

 ing to the brands and their strength. Atomic sulphur at 

 the strength recommended by the manufacturers, and used 

 in our experiments, costs far more than any other spray 

 tried. Sulphur and arsenate of lead, 3-6-50 formula, costs 

 45 cents per barrel, but, of course, this includes the cost 

 of the insecticide as well. 



Arsenate of lead of the paste type costs from 21 to 28-| 

 cents, when used at the rate of 3 pounds per barrel, and in 

 the dry form, 33 cents, when used at the rate of 1| pounds. 



