204 ^^^ CONNECTICUT POMOLOGICAL SOCIETY. 



The injury shown in several of these plots is evidently 

 so great as to exclude their treatments from serious consid- 

 eration as summer sprays for peaches at least. But it is 

 the nature of the injury that is most important in our pres- 

 ent discussion. This was apparently identical throughout 

 the experiment. On plots 6, 7, 9 and 10, however, we have 

 four different fungicides and only one common material, 

 viz., the ordinary arsenate of lead. We conclude, there- 

 fore, that the common injury was directly caused by the 

 common material, or in other words we reach our first 

 deduction stated above. 



The general appearance of the injury on the fruit is 

 shown in Figure I. 



Figure I. — Typical injured peaches from plots 6 to 11, in 1910. The 



injury is apparently due to the arsenical directly, with 



the fungicide aiding indirectly. 



Methods of Eliminating the Injury. 



From our results the past season, the precipitation 



method of eliminating sidphur-arsenical injury seems to be 



least desirable. The precipitation can be accomplished 



readily enough without loss of sulphur, by means of iron 



