The experience of the past two years has demonstrated that more can be
accomplished in locating and destroying the blight after the leaves
have fallen than while the trees are in full foliage. Girdled twigs and
branches bearing withered leaves are prominent at great distances in
winter, and the increased amount of light admitted through the tops of
the trees makes it easier to see cankers on the trunks and branches.
The proper treatment of the infected trees is no more difficult in
winter than in late summer or fall, unless the snow is very deep. In
the badly blighted region in the eastern part of the State, field men
are able to accomplish better results because most timber owners prefer
to cut their timber in the winter, when they can spare the time from
their farming operations.