32 NEW YORK STATE MUSEUM 



good stone lime were also added to each 200 gallons of the spray. 

 The pressure was maintained at about 175 pounds. Two lines of 

 hose were used, one man being upon the outfit and the second working 

 from the ground. At the time of spraying more than two- thirds 

 of the blossoms were off and the others were dropping rapidly. 

 There was a light breeze, the day was bright and bees were not 

 working in the orchard. One tank full, or 200 gallons, sufficed for 

 22 trees, the time of application being approximately 35 minutes. 

 It required from 20 to 25 minutes to fill the tank. The distribution 

 was very satisfactory, few or no leaves being skipped and there was 

 very little dripping. Freedom from insect pests, especially leaf 

 roller and aphis, was evident though a few case-bearers were observed. 



The second spraying was made on plots 2 and 3 June 9th. The 

 same formula was employed as before, the day was bright and 200 

 gallons sufficed to spray 33 trees. The work began at 8.43 a.m. 

 and was completed by 11.30. Leaf roller work was evident, some 

 pupae being observed, and a number of case-bearers occurred here 

 and there, their' work being somewhat evident both upon foliage and 

 fruit. 



Observations July 14th showed some leaf roller injury and more 

 damage by the case-bearer than appeared in other orchards. There 

 was also a perceptible amount of hail injury. The side injury caused 

 by young codling moth larvae was prevalent to some extent, though 

 the infestation was decidedly less than in any other of the experimental 

 orchards. The conditions approximated those we would expect 

 to find in similar orchards in the Hudson valley. 



The third spraying was given plot 3 July 29th, 200 gallons being 

 used for 40 trees; 3 pounds of arsenate of lead, lime-sulphur 1 to 

 50 was the formula employed. No eggs and comparatively little 

 side injury were seen. 



