i(i;5 



A lime-sulphur solution of the proper strength will kill all scales 

 with which it comes in contact, and it is also a useful fungicide. It 

 may be purchased ready-made, or one may prepare it himself by simply 

 boiling the ingredients together until they are dissolved. It is applied 

 with an ordinary spray pump such as is commonly used in orchard 

 work. These facts bring the San Jose scale within the control of the 

 owner of infested premises, and make it, in fact, one of the most 

 easily managed of the serious insect pests of horticulture. 



Directions for Making. — The mixture may be boiled either over 

 a fire or with a steam cooker. For boiling over a fire, two iron kettles 

 are necessary, one with a capacity of at least fifty gallons for making 

 the solution, and another, which may be smaller, for keeping a supply 

 of warm water at hand. Cold water is also needed when the mixture 

 threatens to boil over. If a steam' cooker is available, the solution may 

 be made in a fifty-gallon barrel. Smaller vessels may be used for 

 preparing smaller quantities of the solution. 



To make forty gallons of a concentrated solution, provide thirty 

 pounds of the best stone-lime procurable,* sixty pounds of either flour 

 or flowers of sulphurf, and water enough to make forty gallons when 

 boiling is finished. First mix the sulphur with water to make a thick 

 batter, beating well to break up all lumps. If the sulphur is lumpy 

 when dry, it should first be rubbed thru a wire sieve. Put about ten 

 gallons of warm water in the cooking vessel, start the fire under it, 

 and add the sulphur and the lime. Stir constantly, adding warm water, 

 if necessary, as the lime slakes, to keep it from burning. After the 

 lime is completely slaked add enough water to make forty gallons, 

 and boil gently, keeping it well stirred, from forty to sixty minutes, 

 or until the lime and sulphur are practically all dissolved. Add a little 

 warm water occasionally, to keep the amount up to forty gallons. 

 To make the wash on a large scale, more elaborate equipment will be 

 needed, but the process to be followed will be the same. 



After the boiling is done, the solution may be used at once, or it 

 may be kept indefinitely in air-tight barrels. It should not be stored 

 where it will freeze. 



For spraying dormant trees, use one gallon of the above solution 

 to four gallons of water. Stir the solution thoroly, and pour it into 



tMany use finely grround brimstone. It is cheaper than either the flour or 

 the flowers of sulphur, but does not enter into solution quite so readily. 



♦Forty pounds of steam hydrated lime may be substituted for thirty 

 pounds of stone-lime. 



