The locust borer and its relation to detrimental and destructive injuries to the black or yellow locust in the eastern United States have been subjects of special investigations by the Bureau of Entomology during the past two years, which have resulted in the determination of practical methods of control.
Pursuant to certain complaints of serious injury by wood-boring
insects to girdled cypress timber in the South Atlantic and Gulf States,
the Bureau of Entomology began a series of experiments and investigations
with special trees girdled on definite dates in every month of the
year, as well as with those...