it is impossible from our experience to state what effect tiie lime and 

 sulphur would have on apple scab, apple rust and the fruit rots. 



Experience has shown that the best concentrations of lime and 

 sulphur are obtained by using about twice as much sulphur as lime, 

 since this preparation gives the least sediment. Nothing but the 

 best fresh stone lime, which is the purest, should be used in making 

 lime and sulphur, Air slaked lime should not be used under any 

 circumstances, and in many cases it is advisable to use hot instead 

 of cold water in slaking the lime. 



SELF-BOILED LIME AND SULPHUR MIXTURE. 



By W. M. Scott. 



Flowers of sulphur or sulphur flour, 8 pounds. 



Fresh stone lime, 8 pounds. 



Water, 50 gallons. 



In making this mixture the best stone lime procurable should be 

 placed in a barrel and slaked, using precautions not to drown the 

 lime in slaking it. W. M. Scott recommends that enough water be 

 applied to nearly cover the lime when slaking. As soon as the lime 

 has commenced to slake and some heat has generated, apply the 

 sulphur through a fine sieve to break up the lumps. The mixture 

 should be stirred and more water added gradually, bringing it to a 

 thin paste. As soon as the lime is well slaked, more water should 

 be added to cool the mixture. 



Since there is much difference in lime as regards the develop- 

 ment of heat, it is difficult to specify any particular time to add the 

 water for the purpose of cooling, but it should be done before the 

 sulphur goes into solution and forms sulphides, which are injurious 

 to peach foliage. Under ordinary conditions, the mixture should 

 not be allowed to remain hot over ten or fifteen minutes after slak- 

 ing. With the intense heat developed from slaking and constant 

 stirring a uniform mixture of fairly finely divided sulphur and lime 

 is obtained with only a small trace of sulphides in solution. It 

 should be strained before use and is intended as a summer spray. 



Mr. Scott has used this successfully for peach brown rot and scab. 

 In this formula he also mixed two pounds of arsenate of lead, which 

 proved effective in controlling plum weevil. Mr. Scott believes that 

 the arsenate of lead is less likely to burn tender foliage when in 

 combination with lime and sulphur than when used alone. 



