Cornell University, ] 



Ithaca, N. Y., Feb. 20, 1900. S 



The Honorable Commissioner of Agriculture, Albany, N. Y. : 



Sir. — This bulletin is submitted for publication under Chapter 

 430 of the Laws of 1899. It has been prepared by Mr. W. A. 

 Murrill and embodies the results of experiments extending over one 

 year, together with a resume of the investigations on the same subject 

 which are set forth in full in Bulletin 164. The Peach Leaf-Curl 

 during the last few years has become a menace to the peach indus- 

 try in many parts of the State. The two years' experiments lead 

 to the conclusion tliat the leaf-curl of the peach can be easily con- 

 trolled when proper and timely treatment is given. This bulletin is 

 valuable because it has establislied the fact that the foliage of peach 

 trees, even of the more tender variety, may be healthy and vigor- 

 ous, and because it gives specific directions as to the time of spray- 

 ing, the kind of spray material and the method of application. 



The investigations in Niagara County have been conducted on a 

 large scale that some lacts might be secured to guide the peach 

 grower as to the cost and practicability of treating large orchards. 

 The investigations conducted at Ti'umansburgh were on a smaller 

 scale but large enough to give reliable results. 



I. P. ROBERTS, 



Director. 

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