-31- 
effective in minimizing the production of adults in 1937. Results of the sur- 
vey in 2agle Valley, sampled on October 10, are shown in the following table. 
-I. postica 
adul t s 
Jt>. curculionis cocoons 
Field. No. 
Present 
Viable 
1 _ 
2 - - 
3 
4 
6 
7 
3 : 
9 - 
10 
11 : 
12 : 
Number 
i.oo 
.25 
o ■>, 
.75 : 
.75 : 
1.00 : 
.75 
.50 
'.75 
1.25 
■'. 50 
\50 
Number 
2.00 
2.75 
1.75 
2.00 : 
1.50 
6,00 
3.25 
1.00 
2.50 
2.75 
1 . 50 
.75 
Percent 
52.50 
45.45 
42.86 
12.50 
0. 
15.67 

: 25.00 
: 50.00 
45. 45 
83. 33 
:' 56.67 
Average - 
0.87 
2.31 
32.43 
Malheur County . — Weevil adults were extremely scarce, being found in 
only tnree fields and averaging only C.08, which i indicated no damage for 1937. 
B. curculionis cocoons were scarce, averaging only 0.95, but this, average is 
large, compared with the weevil population. Results of the survey in Malheur 
County, sampled on October 11-12, were as follows: 
Jield No 
postica 
adults 
curculionis cocoons 
Present 
Viable 
1 
2 
3 
4 
5 
5 
7 - 
8 
9 
10 
11 
12 
13 
Average - 
■umoer 

0.25 

.25 
C 

o' 





50 
Number 

0.25 
.75 
2.00 

.25 
.25 
.50 
1.25 
.50 
3.50 
2.75 
.50 
Percent 
100.00 
33.33 
37.50 


50.00 
20.00 

23.57 
81.32 
50.00 
0.08 
0.95 
42.00 
J ackson County .— Adult populations indicated that about one-fifth of 
the fields will be damaged in 1937. Populations necessary to produce damage 
are not definitely known, but more adults are required than in the older in- 
fested areas, because of climatic factors. The recently introduced parasite 
has spread rapidly, cocoons having been recovered in 18 of the 25 fields 
