84 BEGINNERS' GUIDE TO FRUIT GROWING 



cult to obtain enough heat from them to cook the 

 mixture at all, while other limes become intensely 

 hot on slaking. Care must be taken not to allow 

 the boiling to proceed too far. If the mixture is 

 allowed to remain hot 15 or 20 minutes after the 

 slaking is completed, the sulphur goes into solu- 

 tion, combining with the lime to form sulphides, 

 which are injurious to peach foliage. It is very 



FIG. 43 TREES SPRAYED WITH LIME-SULPHUR 



important, especially with hot lime, to cool the mix- 

 ture quickly by adding a few buckets of water as 

 soon as the lumps of lime have slaked down. The 

 intense heat, violent boiling, and constant stirring 

 result in a uniform mixture of finely divided sulphur 

 and lime, with only a very small percentage of the 

 sulphur in solution. The mixture should be strained 

 to take out the coarse particles of lime, but the sul- 



