
Ih, op 
J. C. Evenden, of the Coeur d'Alene, Idaho, field laboratory, spent 
most of the month of April in the field in connection with the bark-—beetle 
control projects being conducted in Forest Service Region 1. The week 
of April 6 to 12 was spent on the Madison, Mont., project in conducting 
a training camp for chief spotters, crew foremen, and camp managers, 
for the purpose of giving instruction in the proper location, marking, 
and treatment of infested trees. This project is directed against an 
outbreak of the mountain pine beetle in lodgepole pine. The infestation 
threatens to spread through the Madison National Forest into the scenic 
forest of the Yellowstone. 
. From April 15 to 22 Mr. Evenden accompanied E. E. Carter and 
Elers Koch, of the Forest Service, on an inspection of the control work 
being conducted on the Kootenai and Coeur d'Alene National Forests in 
Idaho. These two projects are directed against an outbreak of the moun- 
tain pine beetle in valuable commercial white pine forests. 
Mr. Evenden spent the latter part of April with Messrs. Carter and 
Koch on the Madison project, where operation plans were discussed and an 
inspection of the work conducted. Although handicapped by severe snow 
conditions all bark beetle control projects have been pushed as rapidly 
as possible and at this time are operating at nearly maximum capacity. 
A. L. Gibson, Assistant Entomologist at the Coeur d'Alene, Idaho, 
field laboratory, left early in April for the Madison bark beetle control 
project, where he has been assisting the forest officers in charge with 
the entomological features of the work. 
T. T. Terrell, Assistant Scientific Aid, assisted the forest offi- 
cers in charge of the Coeur d'Alene bark beetle control project in con- 
ducting a training camp for chief spotters, crew foremen, and camp mana— 
@ers during the week of April 15 to 19. Mr. Terrell spent the last ten 
days of April in assisting the officers of the Tongue River Indian Reser- 
vation to institute a small control project against a potential outbreak 
Of the Black Hills beetle in yellow pine. Mr. Terrell expects to leave 
the Tongue River Reservation early in May to assist officers of the Yel- 
lowstone Park in instituting a control project against an outbreak of 
the mountain pine beetle in the lodgepole pine forests in the southwest 
corner of the Park. 
H. J. Rust, Senior Scientific Aid, has spent considerable time in 
the field around Coeur d'Alene, studying the biology of the Oregon pine- 
bark beetle, Ips oreponi, and associated species of insects. The purpose 
of this study is to learn more of the factors contributing to the des- 
tructive sporadic outbreaks of this insect. 
B. H. Wilford, temporary employee, assigned to the Coeur d'Alene 
laboratory, and who will have charge of the experimental spraying against 
the spruce budworm in Cody Canyon, has completed plans for the season and 
left for the field on May 5. Mr. Wilford will be assisted on this pro- 
ject by Elmer Miller, a temporary employee who was employed on this pro- 
ject last season. 
