SPRAYING MIXTURES. 223 



Pulverized resin, 5 pounds. 



Concentrated lye, 1 pound. 



Fish oil (or other animal oil), 1 pint. 



Water, 5 gallons. 

 Place the oil, resin and one gallon hot water in an iron 

 kettle and heat until the resin softens. Then add the lye and 

 stir thoroughly. Now add the four gallons of hot water and 

 boil until a little will mix with cold water giving a clear amber 

 colored liquid. Make up to five gallons and keep as stock. 



In using this in Bordeaux mixture, make the 40 gallons 

 as per formula, then take two gallons of this resin-like stock, 

 dilute to ten gallons and add to the Bordeaux mixture or to 

 lime-sulphur. 



Resin-fish oil soap, a commercial product, can be used 

 instead of this "sticker." 



. Potassium Sulphide — (Liver of Sulphur.) 

 This is a fungicide employed when it is undesirable to have 

 the foliage discolored. It is especially effective against mildew 

 on gooseberry and rust on carnations. A fresh solution is yel- 

 lowish brown. 



Formula — Potassium Sulphide 3-5 oz. 



Water 10 gals. 



Copper Sulphate (Blue Vitriol.) 

 If trees are to be sprayed when dormant it is not necessary 

 to go through the tedious process of making Bordeaux mixture. 

 A solution one pound blue vitriol in 15 to 25 gallons water makes 

 an excellent fungicidal spray at that time. 



Soap Solution. 

 An excellent spray for soft-bodied insects, like plant lice, 

 is made by boiling one pound laundry or Ivory soap in 12 to 15 

 gallons water. When the soap is thoroughly dissolved it is ready 

 to use. This sprayed when warm is preferable to using the liquid 

 cold. 



Nicotine. 



The nicotine in tobacco has great insecticidal value. The 

 commercial extracts which are nicotine sulphate are excellent. 

 "Sulphate of Nicotine" and "Black dwarf 40" are two of the 

 many trade compounds. They are the best plant lice insecticides 

 yet discovered. They can be combined in many of the other com- 

 bined spraying mixtures. 



PREPARING BORDEAUX MIXTURE FOR SPRAYING. 

 '4 pounds of Copper Sulphate (Blue Vitriol). 

 4 pounds of good Stone Lime. 

 These are to be dissolved separately, each in 25 gallons of 

 water ; then pour the two together into a fifty-gallon barrel, stir- 

 ring thoroughly. This is the proper mixture for spraying apple 

 trees. It is usually considered unsafe to spray plum trees with 

 more than three-fourths of this amount of copper sulphate. 



