FOR FUNGOUS DISEASES
| Copper Sulphate | |
|---|---|
| Copper sulphate | 1 lb. |
| Water | 18 to 25 gal. |
Use only before foliage opens, to kill wintering spores.
| Bordeaux Mixture | |
|---|---|
| Copper sulphate (bluestone) | 4 to 5 lb. |
| Lime (good, unslaked) | 5 to 6 lb. |
| Water | 50 gal. |
Dissolve the copper sulphate (bluestone) in twenty-five gallons of water. Slake the lime slowly so as to get a smooth, thick cream. Never cover the lime with too much water. After thorough slaking add twenty-five gallons of water. When the lime and the bluestone have dissolved, pour the two liquids into a third vessel. Be sure that each stream mixes with the other before either enters the vessel. Strain through a coarse cloth.
Mix fresh for each time. Use for molds and fungi generally. Apply in fine spray with a good nozzle.
| Bordeaux-paris-green Mixture | |
|---|---|
| Ordinary Bordeaux mixture | 50 gal. |
| Paris green | 4 oz. to 2 lb. |
Use for both fungi and insects on apple, potato, etc.
| Bordeaux-Arsenate-of-Lead Mixture | |
|---|---|
| Ordinary Bordeaux mixture | 50 gal. |
| Arsenate of lead | 2 to 3 lb. |