A B C OF FLORIDA TRUCKING 137 



CHAPTER XXXI. 



Formulas for Sprays and Insecticides. 



arsenate of lead. 



Arsenate of Lead ^_- i^ to 2 pounds 



Water 50 gallons. 



WHALE OIL SOAP. 



Whale Oil Soap - i pound 



Water 6 gallons 



BORDEAUX MIXTURE. 



Copper sulphate (bale vitriol), 3 to 4 pounds; 

 Quick or stone lime, 3 to 4 pounds ; Water, 45-50 gallons 

 Dissolve the copper sulphate in an earthen or wooden 

 vessel with three gallons of hot water ; or preferably, put it 

 in a coarse sack (burlap or cheese cloth) and hang thl.s in 

 4 to 6 gallons of water near the surface. W'hen dissolved 

 pour into spraying barrel and fill the barrel about half full of 

 water. Slack the lime, dilute it in 10 to 15 gallons, and pour 

 this milk of lime into the barrel through a wire strainer. Do 

 not mix the copper sulphate and lime when less diluted than 

 this, as the resulting Bordeaux is likely to be lumpy ; it will 

 settle quickly, and is more liable to burn the foliage. Add 

 water to fill the barrel and stir the mixture well for a few 

 minutes. Agitate frequently while it is being applied. If 

 spraying peaches or Japan plums, use 2 pounds of copper 

 sulphate instead of 6, and add an excess of lime. Bordeaux 

 will adhere better to such smooth surface plants as cabbage 

 ancj cauliflower, if about one pound of hard soap dissolved 

 in hot water is added. This mixture should always be made 

 fresh for each application, but a stock solution of lime and 

 copper sulphate may be kept separately and will be good 

 economy when the spraying operations are extensive. A 

 stock solution of copper sulphate sufficient for a day's spray-: 



