•39- 
effectiveness declined earlier in the season and more rapidly. In view of 
these findings, the parasite populations are insufficient to be highly effec- 
tive in western Colorado next season. In the following table the results of 
this survey are presented. This county was sampled from October 14 to 
November 23. 
H. postica 
adul t s 
3. curculionis cocoons 
Jield No. 
Present 
Viable 
1 
2 - 
3 •- 
4 ; 
5 
6 : 
7 1 
8 
9 : 
10 
11 
12 
13 _ _ ; 
14 
15 
16 
17 
18 
19 
20 
21 - - 
22 - 
23 
24 - - 
25 
Number . : 
'3.75 : 
.75 
: ; 2.50 
: 1.75 
2.25 
2.50 ■ : 
4.00 : 
'4.75 
1.75 
2.50 : 
3. 50 
2.25 
1.50 : 
2.00 
: .75 
: 3.00 
: .25 
.50 
: .50 : 
: 1.00 
: 1.75 
3.00 
: 1.50 
: .75 
: 2.75 
Number \ 
11.50 
2.50 : 
10.50 
6.25 
3.78 ■ - 
3.00 : 
11.75 : 
15.00 
■ 5.25 - ! 
11.50 
4.50 
7.50 
3.50 
3.75 
3.25 
1.50 
! 1.50 
10.75 
12.75 
: 3.25 
! 3.50 
: 1.50 
: . 5.00 
: 26.00 
: 1.50 
Percent 
: 6.52 
20.00 
: 
40.00 
6.67 
33.33 
40.43 
5.00 
: 33.33 
41.30 
: 27.78 
33.33 
: 7.14 
6.67 
: 38.46 
! 15.69 
t 33.33 
: 25.58 
: 1.96 
: 7.69 
: 21.43 
: 
: 45.00 
: 18.27 
: 83.33 
Average - - 
2.06 
6.83 
: 20.79 
NEVADA 
Beports of slight damage in western ITevada last season, especially in 
Washoe and Douglas Counties, prompted a fall survey of this area, including 
Churchill County. Interest centered on Douglas County where, until ]ast 
season, the weevil was negligible. Churchill County was considered as a whole 
district, while the others were considered half-districts. 
Dowlas County . — Adult populations indicated slight damage in 1937, 
one-fourth of the fields having menacing numbers of adults. B. curculionis 
cocoons were numerous and sufficient to indicate the parasite's effectiveness 
next season if this county is comparable, as it is believed to be, with 
