12 



English Metric. 



Whale oil soap 12 to 15 pounds or 5.45 to 6.8 K. 



Water 50 gollons or 190 litres, 



Quite frequently it is used in Cuba as strong as 20 pounds 

 to 50 gallons or 190 litres. For very resistant scales upon the 

 trunks and larger branches of the trees, it is sometimes dissol- 

 ved in water at the rate of two pounds to one gallón and applied 

 with a brush while hot. It is elaimed by some that whale oil 

 soap either sprayed or brushed upon the trees has considerable 

 valué as an envigorator. When used to destroy soft bodied 

 insects upon tender plants, one pound is dissolved in seven 

 gallons of water. 



RESIN WASH.— The resiu wash is to be used prineipally as 

 a winter applieation against white fly and seale insects. The 

 following formula and instructions are taken from Hume's 

 Citrus Fruits and their Culture. 



English Metric. 



Resin 30 lbs. or 13.6 kilos. 



Caustic soda (98 OJO) 8 lbs. or 3.6 kilos. 



Fish oil 4V 2 lbs. or 2 kilos. 



Water to-make 100 gals. or 380 litres. 



Place the well broken up caustic soda and fish oil in a large 

 «ron kettle. Pour over them 20 gals. or 76 litres of water and 

 cook well over a fire for not less than 3 hours. Thefl add hot 

 water, a little at a time, and stir thoroughly until there is at 

 least 50 gals. of the hot solution. Place this in a spray pump 

 and add cold water to make up 100 gals. or 380 litres or keep 

 the mixture ol* 50. gals. or 190 litres, as a stock solution and 

 dilute with an equal amount of water as desired for use. Cold 

 water should not be added during the cooking process, but a 

 sufficient quantity of hot water should be provided for that 

 purpose. 



