350 



Bulletin 180. 



Experiment III. 



The trees used for this experiment were 

 of Messrs. King and Kobinson in Seneca 

 Co., on the west shore of Cayuga lake, 

 two miles north of Trumansbiirg. 

 When the curl iirst appeared in 1898, 

 which was late in the season, the orchard 

 was sprayed with Bordeaux, but with- 

 out noticeable effect on the curl. The 

 past year it was again sprayed with 

 Bordeaux, but early in April, and it was 

 at that time that my experiments were 

 made. 



The varieties in this orchard most 

 affected with curl in '98 were Elberta 

 and Mountain Kose, Hill's Chili suffer- 

 ing very little ; but in '99, Hill's Chili 

 seems to have been affected more than 

 any other variety. The spraying was 

 done April 8, the rows running across 

 varieties as shown in the plan. Esti- 

 mates were taken July 5. Table 1 gives 

 results for different treatments ; Table 2 

 for individual trees in a single row, 

 enabling one to compare varieties. All 

 of these trees are very large and were 

 heavily loaded with fruit. There were no 



chosen from the orchard 



Checks are represented by -}-. 



injuries to the foliage. 



Experiment III. — Table 1. — A Comparison of Treaments. 



Row. 



1 

 2 

 3 

 3 

 4 

 5 



Treatment. 



Bordeaux, 6-6-50..., 

 8-3-50 ... 



Lime, 2-5 



Check 



Copper sulfate, 4-50. 

 1-100 



Amount of curl. 



One leaf to the tree 

 Seven leaves to the tree 

 Fifteen leaves to the tree 

 Three pr cent 

 Twelve leaves to the tree 

 Forty leaves to the tree 



