Pinhole injury to girdled cypress in the South Atlantic and Gulf states

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 girdled in regular operations at known dates or periods, to determine whether or not there was any important relation between the month or time of year the trees were girdled and subsequent injuries. This work was personally conducted by specialists of the Bureau in cooperation with cypress manufacturers in southeastern North Carolina, southern South Carolina, southeastern Georgia, western Florida, and southern Louisiana. It was begun in the spring of 1903 and continued until December, 1904. Over 300 trees were examined, and observations were made on practically all of the different species of insects which are in any manner associated with injury to the wood and bark of living, dying, and felled, as well as girdled, cypress

The locust borer and methods for its control

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

Insect injuries to forest products

Reprint from Yearbook of Department of Agriculture for 1904

The white-pine weevil

The Bureau of Entomology has been conducting systematic and economic investigations of the weevils infesting the bark of the trunk and terminal shoots of conifers in the United States, the results of which will be published in the regular technical and popular bulletins ; but since these can not be issued in time to be of service this season, this circular has been prepared to give the information which is of immediate practical importance in regard to one of the most destructive of these weevils

A short discussion of some scales affecting shade trees and hardy shrubs.

no.7

Insect life /

v. 3 1890-9

Monthly letter of the Bureau of Entomology /

no. 85 May 192

Insect life /

v. 2 1889-9