In Montrose County (tahle 11) approximately 10 percent of the 
fifllds surveyed were populated "by potentially injurious numbers of 
weevils. Viable parasite coooons occurred in small numoers "but were 
in keeping with the weevil. abundance. 
Table 11. — Survey results, Montrose County, Colo., sampled 
November 22, 1937 
Field Ho. 
5 _ _ 
r 
7 I __ 
9 
Average- - - - 
H. postica 
adults 
Number 
..25 
■ -25 
1.25 
2.25 
.25 

1.00 
1.25 
o 
0.72 
B. curculionis cocoons 
Present 
Number 
.50 
3.0C 
6.00 
6.25 
3.50 
2.75 
2.75 
2.50 

3.03 
Viable 
Kiiriber 
-.25 

2.5O 
1.00 
.50 
.25 

1.50 
0.67 
In Mesa County (table 12) the- survey indicated rather general 
weevil damage for 193 s -, ag 2k percent of surveyed fields were in- 
habited "by a menacing, number of weevils. Injury to fields populated 
"by smaller numbers of weevils may also develop "because of generally 
poor growth of the first "alfalfa crop in this area, and damage may 
affect as much as Uo percent of the crop. ' Fall abundance of viable 
parasite cocoons promised effective parasitization for 193S. 
