2i6 THE CONNECTICUT POMOLOGICAL SOCIETY. 



Dr. Stewart: I imagine that a very large proportion 

 of it was attributable to the dry weather. You know we 

 occasionally get to attributing everything to spraying. 

 There are a whole lot of other factors in fruit growing 

 besides spraying. These plots where we got 860 bushels 

 increase were sprayed exactly the same as the others. 



Mr. Pratt : On the other hand, as bearing on this par- 

 ticular point, I have noticed this year, in one case where 

 we tried to control this fruit spot on apples by applica- 

 tions along from the first of July that the size of the fruit 

 was very appreciably diminished by the spraying applica- 

 tions. It didn't make any difference whether it was lime- 

 sulphur or Bordeaux, it diminished the size of the fruit 

 very appreciably. I do not know what is involved, and I 

 would not attempt to explain it, but I am inclined to think 

 that the weather conditions came in there in a way that 

 we do not understand, but they certainly did come in very 

 markedly. 



An Important Word of Explanation. 



Dr. Clinton: Mr. President, I think that there is no 

 very great difference in opinion betvv^een Dr Stewart and 

 Dr. Britton and myself, and though we may not quite 

 agree with him in laying all the blame on the arsenate of 

 lead, we would agree with its particular form and its com- 

 bination with the different fungicides to form arsenic acid 

 are the main causes of the injury to the peaches in his 

 experiments, and probably for the less conspicuous injuries 

 we have had in this state on both peaches and apples. The 

 solution of the matter seems to be the use of ortho-arsen- 

 ate of lead, which so far seems to be available for pur- 

 chase only from the California firm whose address he gives. 

 If this form of lead is used, and the general directions for 

 spraying, as given at the end of my paper, are followed, 

 I think we have the best procedure for spraying in this 

 state. If this form of arsenate of lead is not readilv avail- 



