86 



Prof. Symons. Yes ; if you get a good quality of lime, it gives 

 less sediment, that's all. 



Geo. Fohl. Is the amount given right for fifty gallons of 

 water ? 



Prof. Symons. Yes. 



Member. How do you boil it? 



Prof. Symons. Get a small boiler, or steam engine, or anything 

 of the kind. If you have an orchard of a thousand trees, a vat, cost- 

 ing five dollars, can be made out of wood, with tin bottom, that will 

 serve. ^lake a hole in the ground and set it over. Boil twenty gal- 

 lons of water ; pour in part of the lime, then add the sulphur — mixed 

 into a paste — then the balance of the lime. After it has been boiled 

 for three-quarters of an hour, add sufficient water to make fifty 

 gallons. 



L. M. Myers. Have you ever had any injury from Scalecide 

 on peach trees at the recommended strength of application in your 

 experiments ? 



Prof. Symons. No, not in my experiments; but I have had re- 

 ports of such injury. 



L. M. Myers. At the recommended strength? 



Prof. Symons. Yes. I heard of two or three cases year before 

 last — the injury was slight. I do not know whether it was due to 

 the season or not. Scalecide is one of the best oils on the market ; 

 but I hesitate to recommend the use of oil at all on peach trees. 



L. M. Myers. In your experiments, do you find that you can 

 kill a larger per cent of scale with Lime Sulphur than with oil? 



Prof. Symons. In our tests, yes ; but I know of a great many 

 people who have had a different experience from that. Now, for in- 

 stance, as a striking illustration, I know of a prominent orchardist 

 near Hagerstown, who sprayed his apples with Thomsen Chemical 

 Company's Lime Sulphur Solution, and did not secure good results. 

 I have learned, however, that he had this Lime Sulphur put on by 

 laborers on the farm, and that it was a very inefficient and poor job 

 of spraying, and did not give good results. You have got to spray 

 more thoroughly with Lime Sulphur than with oils. W e picked out 

 an awful orchard for our test this past year, and got good results. 



W. H. Black. Does the commercial Lime Sulphur spread any 

 better than the home-made ? 



Prof. Symons. I hardly think so. In using the concentrated 

 I always like to add a little lime. I usually add a little over two 

 pounds of lime in the form of milk of lime, to one barrel of the 

 Lime Sulphur. It enables you to see what you have done. Before 

 I added the extra lime I could not see where I had started or where 

 I had left off ; and that's the reason I advocated the use of milk 

 of lime. 



Mr. Eldon. Is there any other advantage to be obtained from 

 the use of milk of lime? 



Prof. Symons. There is no advantage, except in seeing where 

 you have sprayed, and it may aid in prolonging the effect of the 

 Lime Sulphur. 



Mr. Eldon. If it stays on, it is that much of a deterrent? 

 Prof. Symons. Yes, sir. You are killing scale by the caus- 

 ticity of the solution. It kills not only the dormant scale ; but the 



