The work of tree surgery thus far has shown that it is possible to
save chestnut trees that are diseased with the chestnut blight. This
can only be done, however, by the most careful tree surgery, followed
by frequent examinations for new infections and the spread of the old
ones. Young, smooth bark trees are more easily saved than old thick
bark trees, because it is much easier to discover the blight on the
former than on the latter.