196 THE CONNECTICUT POMOLOGICAL SOCIETY. 



than where arsenate of lead alone was used, due to the fact 

 that part or all of the percent gained by lessening fungous 

 attack was lost by spray injury. A moderate spray in- 

 jury, however, is not on the whole so serious as a similar 

 fungous injury. Comparing all the apples sprayed in 1911 

 with either a fungicide or an insecticide with all the un- 

 sprayed fruit, the percent perfect in the former was 75, as 

 against 51 in the latter case. The diiTerence in individual 

 cases was often much more striking, as for instance, 77 

 per cent perfect on Baldwins sprayed in the Andrews or- 

 chard in 1911 against 28 per cent on the unsprayed Bald- 

 wins. 



With peaches, it was found that the leaf-curl could be 

 controlled by the use of commercial lime-sulphur sprays on 

 the dormant trees just as the buds were beginning to swell. 

 Used at the strength of 1-8 at this time, it will not only 

 take care of this trouble, but of the San Jose scale as well. 

 Ordinarily, however, it does not pay to spray for leaf-curl 

 alone. This treatment on the dormant trees at this time 

 is of little or no value in preventing scab and rot of the 

 fruit. 



Peach scab and brown rot are fairl}^ well controlled by 

 three summer sprayings with either self-boiled lime-sul- 

 phur. Atomic sulphur, or commercial lime-sulphur. Con- 

 sidering effectiveness, cost, and freedom from spray injury, 

 self-boiled lime-sulphur is the only one that at present we 

 can fully recommend. Arsenate of lead added to these 

 sprays did not appreciably lessen insect injury to the fruit, 

 so we do not recommend its use except in those cases 

 where there is likelihood of serious damage to the foliage 

 from the sawfly. 



Self-boiled lime-sulphur should never be used on 

 peaches after the middle of July, as the hairs on the fruit 

 retain too much of the sediment, especially if there are no 

 rains between that time and the ripening period. Peaches 

 sprayed with this fungicide keep longer than sound peach- 



