Used for fungous and insect enemies of the potato, and of the apple when bitter rot is troublesome.
| Commercial Lime-Sulphur Arsenate of Lead | |
|---|---|
| Commercial lime-sulphur | 1½ gal. |
| Arsenate of lead | 2 to 3 lb. |
| Water | 50 gal. |
Use for spraying apples.
| Ammoniacal Copper Carbonate | |
|---|---|
| Copper carbonate | 5 oz. |
| Ammonia (26° Baumé) | about 3 pt. |
| Water | 50 gal. |
Dissolve the copper carbonate in the smallest possible amount of ammonia. This solution may be kept in stock and diluted to the proper strength as needed.
Use this instead of the Bordeaux mixture after the fruit has reached half or two thirds of the mature size. It leaves no spots as does the lime-sulphur wash or the Bordeaux mixture.
SPRAYS FOR BOTH FUNGOUS AND INSECT PESTS
| Home-Made Lime-Sulphur Wash | |
|---|---|
| Lime | 20 lb. |
| Sulphur | 15 lb. |
| Water | 50 gal. |
The lime, the sulphur, and about half of the water required are boiled together for forty-five minutes in a kettle over a fire, or in a barrel or other suitable tank by steam, strained, and then diluted to 50 gallons. This is the wash regularly used against the San Jose scale. It may be substituted for Bordeaux mixture when spraying trees in the dormant state. Commercial lime-sulphur may also be used in place of this homemade wash. Use one gallon of the commercial lime-sulphur to nine gallons of water in the dormant season.