66 PEACH LEAF CURL: ITS NATURE AND TREATMENT. 



1803-94. During the winters of 1893-94 and 1894-95 the writer sent 

 full instructions for preventing- curl by winter sprays to over two 

 hundred and seventy California peach growers, and requests to carry 

 on spraying experiments, with similar instructions, to more than one 

 hundred growers in Oregon, and to many in Washington. In all of 

 this work for the extension of spraying an effort was made to intro- 

 duce it in as large a number of leading peach-growing centers as pos- 

 sible, especially in those sections of the coast where leaf curl had been 

 most prevalent. The results of some of these experiments are given 

 in Chapter VII, and the facts gathered and experiments conducted under 

 the direct charge of the writer in 1893, 1894, and 1895 are detailed in 

 full in other portions of this bulletin, and require no discussion here. 



