Fungicide Formulas 
For Rots, Blights, Mildews and other Punsous Diseases 
BORDEAUX MIXTURE 
Copper sulphate (blue vitriol) 6 lbs. 
Quick or stone lime 4 lbs, 
Water 45 to 60 gals. 
Dissolve the copper sulphate in an earthen or wooden vessel with three gallons 
of hot water ; or, preferably, put it in a coarse sack, as burlap or cheese-cloth, and 
hang this in 4 to 6 gallons of water near the surface. When dissolved, pour into the 
spraying barrel, and fill the barrel about half full of water. Slake the lime, dilute it 
to 10 to 15 gallons, and pour this milk of lime into the barrel through a wire strainer. 
Do not mix the copper sulphate and lime when less dilute than this, as the resulting 
Bordeaux is likely to be lumpy, will settle quickly, and is more liable to burn the 
foliage. Add water to fill the barrel, and stir the mixture well for a few minutes. 
Agitate frequently while it is being applied. 
If spraying peaches or Japan plums, use two pounds of copper sulphate instead 
of six, and add an excess of lime. Bordeaux will adhere better to such smooth-sur- 
face plants as cabbage and cauliflower if about one pound of hard soap dissolved in 
hot water is added. The mixture itself should always be made fresh for each appli- 
cation, but a stock solution of lime and copper sulphate may be kept separately, and 
will be good economy when the spraying operations are extensive. 
A stock solution of copper sulphate sufficient for a day’s spraying in most cases 
may be made by dissolving 36 pounds of blue vitriol in 36 gallons of water. For each 
barrel of Bordeaux use two to six gallons of this solution, according to the plants to 
be sprayed. Keep this stock solution tightly covered to prevent evaporation. In the 
same way 36 pounds of quick lime may be slaked in as many gallons of water, and 
used as the copper solution ; or it may be slaked with just enough water to make a 
putty, which will keep indefinitely if covered with water, and is to be used with the 
ferrocyanide test. If the lime in the Bordeaux mixture is deficient, a drop ot a satu- 
rated solution of ferrocyanide of potassium added to the mixture will turn brown. 
Add lime till the drop remains colorless and the mixture is ready to use. 
LIME -SULPHUR -SALT 
Lime 15 Ibe. 
Sulphur 16 lbs. 
Salt 16 lbs. 
Water to make 60 gals. 
Boil two hours with a small quantity of water, then dilute to 50 gallons with boil- 
ing water. Do not let mixture become cold ; spray while yet warm. For winter or 
early spring use. 
All state entomologists recommend lime, sulphur and salt treatment for San Jos6 
Scale. Very satisfactory results have been obtained by using this formula. 
