ih 
presenting our program are L. G. Baumhofer, W. D. Bedard, i. L. Gib- 
son, and J. C. Evenden. This lecture is being well received, with 
a large percentage of the porswnnel of each camp in attendances 
Lumber code provides for protection ayeainst forest insects.—- 
One of the important basic , srinciples involved in the conservation 
section of the luaber code is 3 the ;»rovision requiring timber operators 
to cooperate in the probe Seti of forest arcsas from insects and dis- 
ease, as well rom fire. Under this princinls, the details of 
woods practice are now being formulated for each forest region. This 
gives the Division of Forest Insects an opportunity to set up the 
necessary minimum requirements for insect ccntrol in each. Thus, 
pt E 
i 
almost overnight the pene of prote cting forests from insect at- 
tack hes bean given the r boa ae it de eserves, if forest conserva- 
tion is to be actively pi nee ced. 
Wood -borers- play dmportant role in cestroyinys fire-killed 
Douglas Pir.--Recent field examinations by J. &. Beal and J. HM. 
Whiteside, of the Portland, Orez., field laboratory, in connection 
with a study to determine the rate of deterioration of fire-killed 
Douglas fir have revealei several inters sting facts concerning the 
importance of insects boring in these dead trees. The pnonderous 
borer (Ervates spiculatus Lec.), see is sonerally thought of as of 
secondary economic importance " a woud borer in stumps, roots, 
fallen-logs, or aeans aesu tress, 
» apoears to be a determining 
factor in duestions of salvage operations of fire-killed, old-growth 
Douglas fir... Were it not for,this hastig and the subsequent fungi 
entering through its salleries, the wocd-of Douglas fir would in all 
Si 
probaoility remain jerfes 
jefinite. period; for this is the.only insect, so far found, that 
mines deeply into the heartwood and by so doing reduces the grade of 
the log to the "cull class" and also reduces the quantity of sound 
lumber that can be salvazed. 
lvaga oe for an alncst in- 
Ins beetles hibernatins in ISA ef sine.--W. J. Buckhorn, 
Portland, in exumining beetle-~killed ponuerosa pines early in February, 
found great quantities of Ips emarginatus Lec. and Ips oregoni Eichh. 
hibernating in the duff, and under loose bark aS'483 at the base and 
the roots of recently killed trees. Many of these had constructed 
hibernating vunnels into the moist cambium of the root collar and.in- 
to roots at 8 inches vr more below ground. This habit seems remark— 
able for Ips beetles, which are commonly associated with the killing 
of tree tops. . 

