- 301 ~ 
Camp Roosevelt sections, *~ r yo . This destructive insect, which has 
devastated the spruce ana balsar fir forests of Quebec, Ontario, 
New Brunswick, and Maine is apparently distributed throughout the 
western Ctates . 
' FIR 
California. 
A BARK-BEETLE (Dr vocoetes sp.) 
Monthly News Letter, Bureau of Entomology, No. 112: An examination 
of the dying alpine fir in the Glacier National Pari-: was made during 
the past month. The trees are being killed by a small bark-beetle, 
Drvocoetes sp. This attack occurred in the top and each year a 
lover portion of the bole is attacked. As many as four years are 
requiied to kill bc-ne of the larger trees. in many cases sraller 
trees are killed in or. 3 year. During the latter part cf August 
a further examination will be made of this damage, with the purpose 
of recommending control measures of sore sort, if possible. 
MONTEREY CYPRESS 3ARFC-BEETLE (Phloeosinus cu p res si Hopk.) 
Bureau of Entomolc s Letter No. 1^.2: At San Francisco a 
nvmrer of fine imported ^ha^recyparis and Retinospora were affected 
W.U-;, buying tvigs, ard the nurserymen we re afraid that the entire 
trees would die. The trees are especially valuable at this time 
because the qua rar.tir.e regulations now forbid, their importation. 
The cause cf the trouble was found to be the Monterey cypress bark- 
beet] e ( Phl oeosinus cu;nreppi honk.1. The beetles bore into the 
small twigs, possioiy for food, and this caused the tv/i^to break 
over and lose color. Usually not ru^h real damage is done, but 
the trees look badly for awhile. 
IPS 
California Monthly News Letter, Bureau cf Entomolog; . No. 112: J. M. Killer 
reports that last season Ips was discovered en the Arrowhead Lake 
Project, r, alif., ano that suossrgence of the logs in water for 
several days was not an effective methed cf killing Ips beetles. 
Thi^ season some e,;i~e rim eras are under '/ay at North ' H 'ork to deter- 
mine whether rro^on-ed submergence will -esult in effective mortalitv, 
These tests, which include bet i Ips a..o D s nd root onus b r ;oy ig.o mis Lee., 
are being carried out by Iur, ' rer. ;y have net teen under way 
for a month 'and so far the er.t;eri"ier.t r ?r has not succeeded in drown- 
•■■■•(. ys came out of the water 
They apparently 
sci ar x is 
ing any beetles. brood 02' 
in fine c^v\l + iorc aft i - ree vse t ::' suoi ergence, 
become dormant while ir. the water and do rot de^elco, but recover 
and resume activity within a lev; hours after they arc brought into 
the air. 
