354: 



Bulletin 180. 



Experiment Y. — Table of Results with Beer's Late. 



1 

 2 

 3 



4 

 5 



6 



7 



8 



9 



10 



11 





1-G 



r-16 



Treatment April 11-13. 



Bordeaux 6-4-50. 

 6-6-50. 

 6-6-r)0. 

 3-3-50. 



Check 



Bordeaux 6-4-50. 



Copper sulfate 4-50. 



4-50. 



4-50. 



4-50. 

 Lime 2-5 



Treatment April 11-13. 



Bordeaux 4-4-50 . 

 6-6-50. 

 3-3-50. 

 3-3-50 

 6-8-50 



Amounts of curl 

 June 13. 



Check. 



Copper sulfate 1-250. 



1-500. 



Bordeaux 4-4-50, . . . 



None 



Two leaves to the 



tree 

 4 per cent on all 



checks 

 Ten leaves to the 



tr( e 



1 per cent 

 i per cent 

 i per cent 

 None 



2 per cent 



In the Bordeaux mixtures used in the above table the first figure represents 

 pounds of copper sulfate, the last gallons of water, and the middle one, separated 

 from the others by dashes, represents pounds of unslaked lime. When copper 

 sulfate or lime is used alone with water, the last number represents gallons of 

 water and the first the copper sulfate or the lime in pounds. 



Experiment VI. 



This experiment was made upon a block of Elberta trees chosen 

 from the orchard of Mr. W. T. Mann, one mile west of Somerset, 

 in the northeastern corner of Niagara county. The trees were set 

 in '94 and suffered from the curl in '97 and '98, but were not 

 sprayed before '99. They are very thrifty and bore a large crop of 

 fruit the past season. The orchard from which these trees were 

 selected was sprayed early in the spring with Bordeaux. 



Injuries to foliage were observed with some care in this block. 

 The lime used was of the best quality and both it and the copper 

 sulfate were carefully weighed, as was done in the other experi- 

 ments ; but it soon became evident that the normal Bordeaux mix- 

 ture contained too much copper sulfate for the foliage of the 

 peach. Injuries began to appear two weeks after the second 

 spraying. The foliage took on an unhealthy look ; shot-holes 

 and yellow tips were abundant and many leaves fell from the 

 trees. By June 14, the injuries to rows 3, 4, 5, T, 8 and 12 

 were equally apparent, and doubtless greater than those sus- 

 tained by the check rows from the attacks of the curl. Row 



