Fungous Diseases oe Colorado Crop Plants 
53 
In this preparation 4 times the 8-8-50 formula is used because 
it has been found that these quantities give more satisfaction and 
convenient conditions for cooking than when smaller or greater 
amounts are used. 
Apparatus — 
1 strong 50-gallon barrel. 
1 strong paddle, about 7 feet long. 
1 sifter (flour sifter). 
2 or more buckets. 
1 pair hand scales. 
1 strainer, of cloth or 20-mesh brass gauze. 
Preparation — 
1. Weigh out 32 pounds each of lime and sulfur, having first 
sifted the sulfur. 
2. Place lime in barrel and add about 4 gallons of water. 
3. Add sulfur as soon as the lime begins to slake vigorously. 
4. Stir preparation vigorously with the paddle, adding enough 
water from time to time to avoid “burning,” and still not enough 
to “drown” the lime. 
5. Add at least 25 gallons of cold water with vigorous stir¬ 
ring as soon as the lumps of lime are thoroughly slaked. It is very 
necessary to cool the preparation at this time by adding the water as 
indicated. 
6. Make up to 200 gallons, or dilute fractions of the stock 
solution correspondingly. 
7. Strain before putting into spray tank by running the solu¬ 
tion through a cloth strainer or a 20-mesh brass wire strainer. Work 
through any lumps of sulfur with a small paddle. 
8. Apply the spray with any good pressure spray pump. 
Ammoniacal Copper Carbonate. 
Copper carbonate. 5 oz. 
Ammonia. 3 pints 
Water. 45 gals. 
Preparation — 
1. Add water to the carbonate to make a thin paste. 
2. Dissolve the carbonate in ammonia, diluted with about 2 
gallons of water. 
3. Make up to 45 gallons. 
Formalin. 
Non-poisonous to animals. 
Formaldehyde (40%), also called Formalin 1 pint 
Water. 40 gals. 
The above is the usual formula for formalin. The amount of 
water used varies with the use to which solution is put and with 
length of treatment. Use as directed in special cases. 
