This salt alone may be used only in very dilute solutions on foliage and fruit, and as a summer spray has but few uses. As a disinfectant for dormant peach trees it may be used as strong as necessary and is very effective against peach Leaf Curl.

Copper-sulfate, 1 lb.; water, 15-25 gal. Dissolve the copper - sulfate in the water. It is then ready for use. One pound in twenty gallons of water has been found effective against the above named disease.