-42- 
UNIVERSITY OF FLORIDA 
3 1262 09244 6474 
The results of the survey in Sioux County, sampled on October 27, are tabu- 
lated below. 
H. postica 
adul t s 
B. curculionis cocoons 
Field Ho. 
Present 
Viable 
1 
2 - - 
3 
4 ■ _ _ 
K 
6 - - - - - 
7 - - - - - 
8 
g j 
10 - - - - - 
11 - - - - - 
12 
Number 
: ' 1.25 
• ' .75 
.50 
- 
: 
.25 ! 
.25. 
; 
.25 
! 
' ; 2.00. 
.25. 
Number 
2.50 
: .25 
.25 : 
.25 : 

.25 
.50 

.25 

- : .50 
! . 3.50 
Percent 
30.00 




: 50.00 
!' 
:. 
:' 7.18 
Average - 
0.46 
0.73 
15.15 
OUTLOOK FOR WEEVIL DAMAGE IN 1937 
Estimates of probable weevil damage next season are based only on those 
fields actually having menacing adult populations this fall; however, there 
are fields in each locality that have slightly fewer adults than the number 
considered menacing and these fields are in a doubtful class. The damage ex- 
pected next season, therefore, may be more or less extensive than is intimated 
in this estimate, depending on whether the spring is adverse or favorable for 
weevil development. Results of the fall survey indicated that widespread, 
severe damage next season will be limited to Mesa County, in western Colorado, 
where three-fourths of the fields are menaced. Roughly,' one-fourth of the 
total number of fields surveyed are menaced, and moderate damage is expectod 
in the upper Snake River Valley of eastern Idaho; in Jackson County, south- 
western Oregon; in Delta and Montrose Counties, western Colorado; in Douglas 
County, western Nevada; and in Box Elder, Salt Lal.ce, Sevier, and Sanpete 
Counties, Utah. Slight or negligible damage is expected in the lower Snake 
River Valley of western Idaho and eastern Oregon; Eagle Valley, Baker County, 
Oreg»; Sioux County, Neb.; and Washoe and Churchill Counties, western Nevada. 
With the exception of western Colorado and southwestern Oregon, the parasite 
promises to be effective in preventing the production of large weevil popula- 
tions in 1937. In western Colorado the parasite is rather scarce and, further- 
more, its value is doubtful because of its early spring decline in effective- 
ness. In southwestern Oregon the parasite has only recently been introduced 
and is not sufficiently abundant to be widely effective as yet, but the results 
of the recent fall survey reveal that it is rapidly establishing itself. 
