224 



STATE BOARD OF AGRICULTURE. 



erally used is 50 gallons of water, 6 pounds of stone lime and 4 pounds 

 of copper sulphate. Poison is added as needed. The copper sulphate 

 will readily dissolve in 2 gallons of hot water, to which should be 

 added enough water to make 25 gallons or one-half barrel. Slake the 

 lime into a thin paste and add water to make 25 gallons. Pour these 

 together and the Bordeaux is made. When it is emptied into the spray 

 barrel or tank, it should be strained through a brass wire strainer 

 to catch any of the coarse jjarticles. 



Whenever it is necessary to use a quantity of the mixture, it is de- 

 sirable to have the lime and the copper sulphate in ^'stock solution." 

 A quantity of lime is slaked to a paste and held so by being covered 

 Avith water. The copper sulphate, say 50 pounds, is placed in a clean 

 gunny sack and suspended in a barrel holding 25 gallons of water. 

 This will dissolve in about a day. One gallon of this "stock solu- 

 tion"^ is equal to 2 pounds of copper sulphate. 



A good quick way to combine these 

 three substances is as follows : Put 

 the amount of the "stock solution" of 

 copper sulphate required in a barrel, 

 and add enough water to make 25 gal- 

 lons, or one-half barrel. Put about 7 

 pounds of the lime paste in a barrel 

 and add 25 gallons of water, making a 

 thin whitewash. Pour, or let these 

 two run together into a third barrel, 

 or directly into the spray barrel or 

 tank, being sure to strain. When 

 partly run in, test Avith ferro-cyanide 

 of potash- to make sure enough lime 

 has been used. If Paris Green, arsenate of lead, or any other poison is 

 to be used, make it into a thin paste with a little water and add it to 

 the Bordeaux mixture, which is now" ready to be used. 



SPRAYING FOR SCALE. 



San fJose scale must be cleaned out of the orchard, or it will ruin 

 the trees in a few years. 



Exi^erience has demonstrated that the best method of treating scale- 

 infested trees is to spray them in the spring before growth starts, with 

 the lime and sulphur wash. This is made with 20 pounds of lump 

 lime, 15 pounds of sulphur and 50 gallons of water. The lime and 

 sulphur are placed in a cooking receptacle and 15 to 20 gallons of 

 water added. Boil for about one hour, stirring frequently. Add w^ater 

 to make up the 50 gallons, strain through a fine, brass wire strainer 

 into the spray tank, and apply while warm. 



1 Always stir this "stock solution" before dipping any out, that what is used may be of full 

 strength. 



2 This chemical can be secured of anv druggist. Ten cents worth dissolved in a pint of water will 

 be enough for a season. Drop a very little in the Bordeaux, if a reddish, brown color appears, more 

 lime must be added. If there is no discoloration, there is enough lime. 



