16 



PARIS GREEN SPRAYING EXPERIMENTS. 



REPORT FROM THE NEW YORK STATION, ITHACA. 



By JOHN CRAIG and H. E. WEED. 



The Paris Green was applied to the foliage of apple, pear, peach, 

 and plum trees according to the directions accompanying the samples. 

 The trees were sprayed on May 25, and 26, 1903, and the final results 

 observed and notes taken on June 16. In the notes on the damage 

 done to the foliage given below the terms "no injury indicated," 

 "injury indicated," "somewhat injured," "injured," and "badly 

 injured" are used to indicate the various degrees of injury in order 

 that the results may be compared. In the same way the terms " spray- 

 ing safe," "spraying questionable," and "spraying unsafe" are 

 employed to indicate whether or not it would be expedient to spray 

 with the amount of soluble arsenious oxid contained in the solution. 



The rainfall during the period of the experiment and the results 

 obtained are as follows: 



Rainfall at Ithaca, N. Y. 



OBSERVATIONS. 



APPLE, VARIETY GOLDEN SWEET. 



