PROCEEDINGS, 1915. 71 



The Digby orchards were sprayed on July 27th and August 4th, and the 

 Windsor ones on August 4th and 27th. Constant rain interfered with the 

 work in the latter place, hence the late dates. A barrel pump was used 

 for all the sprays except the second one at Windsor, when a power out- 

 fit was hired for the purpose. 



The spray used was as follows: 3 lbs. lead arsenate paste, one gallon 

 molasses, 2 lbs. flour, to 40 gallons water; in one orchard the flour was 

 omitted. The molasses gives a fragrance and a sweetness to the spray 

 which is supposed to attract the flies. The flour is first made into a paste 

 and is used to increase the adhesive powers of the spray, since the mo- 

 lasses almost completely spoils the excellent adherring qualities of the 

 lead arsenate. 



The results of the spraying are given in tables 9 and 10. These fig- 

 ures were obtained from careful examination of every apple, windfall and 

 hand-picked, in all the orchards and the total numbers of punctures count- 

 ed. In all, some 191,497 apples were examined at Digby and 67,148 at 

 Windsor, so that our results are based on the entire crop of the orchards, 

 and represent actual counts. 



