56 THE CONNECTICUT POMOLOGICAL SOCIETY. 



venience in its preparation and spraying, that we are inclined 

 to recommend in this state the commercial lime-sulphur 

 sprays for summer use on the apple. But we do this with 

 the statement that in our work they have-not yet been thor- 

 oughly tested as to their real value in preventing all the fun- 

 gous pests. We hope to continue the work the coming year. 



Experiments with Peaches. 



Turning now to our work with peaches, we may state 

 that while the experiments were not so extensive, the results 

 were more decisive. About 125 trees in the Ives, Rogers and 

 Jones orchards were sprayed. The self-boiled lime and sul- 

 phur only was used in the Rogers and Ives orchards, while 

 in the Jones orchard, where the most extensive spraying was 

 carried on, there were used besides this potassium sulphide, 

 Sulfocide, and Niagara lime and sulphur. At harvest time 

 about 25,000 peaches from the sprayed and check trees were 

 examined for scab, rot and insect injury. 



Self-boiled lime and sulphur, 8-8-50 formula, produced 

 no injury, and was very effective in preventing rot and scab 

 when sprayed at the proper time. There is some trouble, 

 however, with this fungicide, from the sediment left on the 

 fruit if the season is a dry one. Consequently it is not safe 

 to use it later than the middle of July. No injury results to 

 the trees by combining arsenate of lead with it as an insec- 

 ticide. Not only did the self-boiled lime-sulphur largely de- 

 crease the rot in the orchards, but fruit so sprayed lasted long- 

 er on the market before rotting. 



The Niagara lime-sulphur gave about as good results in 

 preventing scab and rot as did the self-boiled, but this was 

 not tried on so large a scale. There is not much danger of 

 the sediment showing on the fruit from late spraying. It 

 can be combined with arsenate of lead without injury to the 

 trees. In our first simimer treatment with this fungicide we 

 used it at a strength of 1 to 75, which produced a very slight 

 injury, but the second spraying at 1 to 100 gave no ill effect. 



