-41- 
table shows the results of the survey in Qiuc*hill County, sampled on 
November 17-19. 
: . H. postica 
adults 
B. curculionis cocoons 
Pi eld No. 
Present 
Viable 
1 
2 
3 - 
4 
5 
6 : 
7 _ - 
8 - 
9 - 
10 
11 
12 - 
13 
14 
15 - 
16 ; 
17 
18 
19 
20 
21 
22 
23 
24 
25 
Number 
: 
: 
0.75 

: 
.25 : 

! 
.25 
.25 
.50 ; 
.50 
.50 


: 


: 

: .75 
: 
: 
! 
: 
Number 
: 5.25 
10.00 : 
18.75 
12.00 
.75 
12.50 i 
• : 12.00 : 
13.25 
19.50 : 
: 8.75 : 
9.25 
17.75 
: 3.00 
.50 
3.75 
11.75 ! 
1.25 
17.50 
4.75 : 
1.25 
3.75 
1.00 : 
21.50 
4.25 
10.25 
Percent 
4.76 
2.50 
1.33 
4.17 
100.00 
4.00 
22.92 
11.32 

5.71 
16.22 
4.23 
! 8.33 
: 

2.13 
20.00 
8.57 
5.26 
20.00 
: 

: 2.33 
5.88 
• 4.88 
Average - 
: 0.15 
8.97 
6.02 
NEBRASKA 
S ioux Count y. — The infestation in western Nebraska first attracted 
attention in 1934, when slight damage was reported in Sioux County, and 
since that time a few fields have been damaged annually. In 1936 only one 
field was severely damaged. Two additional ones showed heavy feeding but, 
in general, weevils were scarce throughout the county. Ecological studies 
last season revealed the fundamental trends of the weevil population to be 
roughly comparable to those existing throughout the older infested areas, 
A fall survey of 12 fields was consequently made to complete the year's 
studies. Adult populations indicated virtually no damage next season, only 
one field having menacing numbers. 3. curc ulionis cocoons were scarce and, 
in view of the low effectiveness of this parasite last season, seemed liardly 
sufficient to be more effective in 1937. The extremely cold winter, common 
to this area, may further reduce both parasite and weevil populations. 
