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arsenate of lead to the Lime Sulphur not only did not cause injury 

 to the foliage, but was as effective in controlling coddling moth as 

 when used with the Bordeaux. The check trees showed 25 per cent 

 wormy apples, while those sprayed with the Lime Sulphur and ar- 

 senate of lead showed but 1.3 per cent as compared with 3.3 per 

 cent on Bordeaux sprayed trees. 



Both Cordley and Scott report good results with Commercial 

 Lime Sulphur for apple scab this past season. Cordley used the 

 Niagara Brand, and Scott used three brands in his work, — the 

 Grasselli, Thomsen Chemical Co., and Rex. Scott used arsenate of 

 lead with the Lime Sulphur with safety, but had burning of the 

 foliage where Paris Green was used with the Lime Sulphur. Scott's 

 Self Boiled Lime Sulphur also gave excellent results for apple scab. 



Results on Brown Rot of Peaches. 



The results with the Lime Sulphur for Brown Rot have not yet 

 been gotten together so as to give definite figures. Mr. Wallace 

 found early in the season that a dilution of the Commercial Lime 

 Sulphur of I -100 seriously burned peach foliage. Later he tried 

 a dilution of 1-200 with no injury to the foliage and with a marked 

 reduction in the amount of rot in the fruit. Three sprayings re- 

 duced the rot from three to five times. The applications were made 

 about ten .days apart, the last being applied shortly before picking. 

 The commercial solution at this dilution has the advantage over the 

 self boiled mixture of Scott in that it is much less expensive and will 

 not stain the fruit. It can be applied the day before the fruit is 

 picked. 



We are not recommending the general substitution of Lime 

 Sulphur in place of the Bordeaux. We give you the results of one 

 season's work. If you use the Lime Sulphur on your trees this com- 

 ing summer it is with the risks involved in using a solution not yet 

 thoroughly tested out, and whose peculiarities under different weath- 

 er conditions is yet to be determined. That the Lime Sulphur has 

 powerful fungicidal properties is certain. That it will not injure 

 apples (when properly diluted) under conditions that produces 

 russeting by the Bordeaux is shown by Mr. Wallace's experiments. 

 That it is very probably the coming spray is not to be disputed in 

 the light of the favorable reports from experimenters in the different 

 fruit sections of the United States this season. 



Member. Is it just as safe to mix arsenate of lead with the 

 self-boiled mixture as with the Commercial Lime Sulphur? 



Prof. Whetzel. Yes. 



Member. Do you know what time Scott makes his application 

 for Peach Rot? 



Prof. Whetzel. No, I do not. I think he sprays from three 

 to five times, beginning at the time the fruit is about the size of a 

 hickory nut. 



Member. Professor, do you think, if you had an orchard of 

 40 or 50 acres of peaches, you would spray with the self-boiled or 

 with the Commercial Lime Sulphur? 



Prof. Whetzel. I would spray with Scott's self-boiled — he has 

 used it three years. With the Commercial I would risk enough of 



