At this writing no specific remedy has been found for the disease.
However, later information confirms the statements previously published
that the disease may be largely prevented from entering healthy trees
by constant and regular spraying with Bordeaux Mixture made up in
proportions of 5 pounds of lime, 5 pounds of copper sulphate, and 50
gallons of water. The application of this mixture simply prevents any
new germination of spores, but has no effect whatever, in cases where
the disease has already started in the tree. Because of the cost, it
is, of course, not applicable in forests.