Peach Leaf-Curl. 



381 



The final results indicate ver}^ significantly that at most there 

 is very slight effect from the treatments subsequent to the early 

 treatment with Bordeaux, and that the early treatment is the one 

 of importance for the pro- 

 tection of the foliage dur- 

 ing the same year. Per- 

 haps the subsequent treat- 

 ments may prove of value 

 as to the amount of the 

 curl the following year, 

 and this is what others 

 have already demonstrated. 



Since securing these re- 

 sults, I have had corres- 

 pondence with some or- 

 chardists who had sprayed 

 peach trees for various dis- 

 eases. With few excep- 

 tions, those who have 

 sprayed earl}^ have been 

 those successful in the pre- 

 vention of the curl. 



A very interesting result 

 has been reported b}^ Mr. 

 A. I. Loop of North East 

 Penn; So far as the pre- 

 vention of curl is con- 

 cerned, the benefit was 

 accidental ; but the value 

 of early spraying is again 

 demonstrated. From his 

 letter, I quote as follows, 



69. — A branch from a tree in row 2, 

 sprayed early with Bordeaux 

 mixture. 



' ' The experiment was to try the effect of whitening for the 

 protection of buds during winter. The directions given by 

 Professor Whitten in his bulletin issued at Columbia, Mo., were 

 followed. A selection was made about the center of a block of 

 4000 trees ; about a dozen trees across the rows, including 

 different varieties, were treated. The first application was made 



