156 DECIDUOUS FRUIT INSECTS AND INSECTICIDES. 



SPRAYS USED AND METHOD OF PREPARATION. 



Plat 1, 6 per cent distillate oil {mechanical mixture). — This was 

 prepared as follows: 



Water gallons. . 90 



Caustic soda pounds. . 2 



Distillate oil (28° Baume) gallons. . 6 



The water was poured into the tank; then the caustic soda was 

 added to soften the water, and the oil slowly poured in while the 

 water was being violently agitated. The mixture was applied 

 immediately. 



Plat 2, caustic soda. — The formula was as follows: 



Water gallons. . 100 



Caustic soda pounds . . 16 



Plat 3, crude-oil emulsion. — This was prepared as follows : 



Water gallons . . 86 



Fish-oil soap pounds . . 10 



Lye do 2 



Crude oil (16° to 22° Baume) gallons. . 12 



About 20 gallons of the water were heated, and when this began to 

 boil the dissolved soap and then the lye were added. This mixture 

 was then removed to the tank, and the rest of the water (66 gallons) 

 added, making 86 gallons in all. The spray pump engine was then 

 started and the crude oil slowly poured into the tank, the mixture 

 being violently agitated by the tank agitator. A perfect emulsion 

 resulted. 



Plat Jj-, commercial lime-sulphur solution, No. 1. — The formula was 

 as follows: 



Water gallons. . 100 



Commercial lime-sulphur do 11 



Plat 5, borax. — The formula was as follows : 



Water gallons . . 100 



Borax pounds. . 20 



The borax was dissolved in 30 gallons of hot water and poured into 

 the tank, and the rest of the water added. 



Plat 6, well-cooked lime-sulphur wash. — The proportions of ingredi- 

 ents were as follows : 



Lime pounds. . 30 



Sulphur ....do.... 30 



Water gallons. . 100 



This wash was made in the same manner as previously described. 



