16 The Bulletin. 



LIME-SULPHUR WASH. 



In using this material we have the choice between buying the in- 

 gredients and making it up ourselves — or of buying the ready-made solu- 

 tions which are prepared for use merely by mixing with cold water. 

 The lime-sulphur preparations are also very effective in checking fungus 

 diseases on trees, and they foiip a coating on the bark which serves as a 

 partial protection during part of the growing season. 



READY-MADE LIME-SULPHUR. 



(Or "Commercial" Lime-sulphur). 



The commercial lime-sulphur washes can be bought ready-made from 

 the manufacturers or from agents and dealers in some of our larger 

 towns. Most of them are of about the same strength, and can be re- 

 duced to proper strength for spraying merely by adding water. 



For winter use against San Jose Scale, use one gallon of commercial 

 lime-sulphur to ten gallons of water. There is no need to have the 

 water even warm — cold water is all right. When reduced to the strength 

 recommended for scale, the ready-made wash, as we apply it to the trees, 

 costs about two to six cents per gallon, depending upon the quantity of 

 the material purchased. It has the advantage of requiring no special 

 preparation, there is no sediment or particles in it to clog the spray 

 pump, and it is therefore more quickly and easily used. For these 

 reasons many prefer to use it rather than to make the home-made wash. 



Some firms which manufacture ready-made lime-sulphur washes are : 



Thomson Chemical Co. .^ Baltimore, Md. 



Vreeland Chemical Co., 



26 Dey St., Hudson Terminal Bldg., New York, X. Y. 



Jas. A. Blanchard Co New York, N. Y. 



Niagara Sprayer Co Middleport, N. Y. 



Grasselli Chemical Co Cleveland, Ohio. 



Bowker Insecticide Co 43 Chatham St., Boston, Mass. 



Persons desiring to use the ready-made lime-sulphur should corre- 

 spond with these firms as to prices, exact quantity of water to use, etc. 



HOME-MADE LIME-SULPHUR WASH. 



Many growers prefer to make their own lime-sulphur wash; there- 

 fore, we give the formula and directions for it : 



Stone lime (unslaked) 15 pounds. 



Sulphur (flowers) 15 pounds. 



Water (to make) 50 gallons. 



Heat from 4 to 6 gallons of water to boiling over fire in large iron or 

 brass kettle. Mix the sulphur with enough hot water to make a thin 

 paste and pour it into the kettle with the hot water. Now add the lime, 

 part at a time, and as it slakes dash in a little cold water as needed, to 

 keep it from boiling over or to keep it from becoming dry. Keep the 

 fire going and stir the mixture frequently. As the slaking ceases, keep 



