70 Subtropical Vegetable-Gardening 



Commercial lime siilfm- solution, 2i quarts. 

 Black-leaf "40", 3| fluid ounces. 

 Water, 50 gallons. 



If the leaf-eating insects are present and need to be treated 

 at the same time, substitute from 1 to 3 pounds of lead 

 aresenate in the place of the lime sulfur solution. 



Commercial lime sulfur solution usually can be obtained 

 from seedsmen, fertilizer houses and supply dealers. It 

 may be used in places where the soda sulfur solution is 

 recommended. The usual concentration is such that 1 

 gallon of this may be used to 25 to 50 gallons of 

 water. 



Lime-sulfur solution — self boiled can be used in the place 

 of a soda sulfur solution and will be found to be more or 

 less effective in controlling some of the plant diseases. 



Fresh stone lime, 8 pounds. 

 Flowers or flour of sulfiu-, 8 pounds. 



The lime should be placed in a tub and enough water added 

 to cover. As soon as the lime begins to generate heat 

 enough to cause the water to boil, the sulfur is added by 

 sifting it through a sieve. The mixture should be con- 

 stantly stirred and more water added at first, making it a 

 thick paste and then more water gradually added to thin 

 it down. The lime will supply enough heat to keep the 

 mixture boiling for several minutes. As soon as it is well 

 slaked, more water is added to keep the mixture from 

 further cooking. If the cooking is allowed to continue 

 for fifteen or twenty minutes, the solution becomes caustic 

 to tender foliage, such as the peach. It is important, there- 

 fore, to stop the cooking at the right point. The solu- 



