The use of the lime-sulphur spray to prevent infection has been
experimentally tried at several places on orchard chestnut trees. One
of the most important of these experiments is one that was started in
Chester County in an orchard of 200 chestnut trees, 41 trees being used
for the experiment, the trees ranging in height from 15 to 35 feet, and
about twenty-five years of age. At the time of closing the work of the
Commission, these experiments have not yet been continued for one year,
therefore no definite results have been obtained, nor can any definite
conclusion be drawn.