-32- 
surveyed. Although the populations are still small, they have increased 
satisfactorily to date. In the following table are shown the results of 
the survey in Jackson County, sampled from October 14 to November 14. 
H. postica 
adults 
3. curculionis cocoons 
Field No. 
Present 
Viable 
2 - - - 
3 
4 - ! 
5 
6 
8 - 
10 
11 
12 
13 
14 
15 
16 
17 
18 
19 
20 
21 - - - - - 
22 
23 
24 
! Number 
1.00 . ! 
.25 ! 
.50 ! 
: ■ .25 ! 
! " .25 ! 
: 1.00 ! 
• •' 2.25 ! 
f 2.00 
2.00 
! 2.75 
: •' .50 
! .75 
: - 1.50 
1.00 ! 
', .50 
: 1.25 
! . 1.75 
' 2.25 
: 1.50 
.75 
: .50 
! .50 
: . : 
: .25 
: .50 
Number 
7.75 • ! 
.50 : 
1.75 


.50 
► .' .25- : 
4.50 
! ' 2.75 
.25 
! 1.00 
: 
.25 
1.50 

: .25 
: 1.00 
: 1.00 
1.25 
■ .25 

.25 
. 
: 0. 
: .75 
. Percent 
29.03 

14.28 
50. 00 
! • 100.00 
61.11 
! ■ 90.91 
i • 
: ' 75.00 
100.00 
50.00 
r 
! 25.00 
! 25.00 
40.00 
100.00 
:• 100.00 
100.00 
Average - 
1.03 
1.03 
: 36.60 
IDAHO 
Damage in Idaho last season was. negligible, less than 1 percent of the 
fields being injured. However, larval populations were sufficient to, possi- 
bly, produce damaging numbers of adults in both the eastern and western parts 
of the Stato; and consequently these areas were surveyed last fall. 
Eastern I dah o. — The survey in eastern Idaho covered parts of five 
counties, Bingham and Bonneville Counties being considered as a subdistrict 
and Jefferson, Madison, and Fremont Counties as another,- These divisions were 
deemed necessary because of differences in climate, the three northern coun- 
ties invariably having colder winters and more snow than the other two. 
Although the entire eastern section is considered a two-crop area, occasion- 
ally, as was the case this season, three crops can be cut in the two southern 
counties. In the northern counties, particularly Madison and Fremont, only 
two crops are cut in any season. Adult populations indicate only slight damage 
in 1937, ra.enacing populations being present in less than one-fifth of the fields, 
