Colorado Plant Diseases 
85 
Preparation : 
1. Dissolve 4 pounds of copper-sulfate in 25 gallons of water 
by suspending the copper sulfate in a cloth bag in such a 
Avay that the bag will be just under the surface of the 
water in one of the 30-gallon tubs. 
2. Slake 5 pounds of stone lime in the other tub and add 
water to make 25 gallons. 
3. When the solutions are thoroughly dissolved they should 
be mixed by having one man dip up a pail of copper-sulfate 
solution and pour it into the 60-gallon barrel, through a 
cloth suspended over the top, at the same time that an- 
other man is pouring in a pail of the lime solution. This 
process should be continued until the amount of spray 
desired is mixed. Remove the cloth from the top of the 
barrel and stir vigorously. 
4. Strain the mixture again when filling the spray tank. Use 
as soon as mixed. 
Making Bordeaux mixture. (Original in Bulletin 206, by Sackett.) 
