- 540 - 
- 2 - 
Details of this season's scouting "by Bureau personnel of the al- 
falfa weevil laboratory are summarized in table 1 , which shows 129.775 
sweeps of an insect net taken in 236 fields in 51 counties in 9 western 
States. Table 2 shows results of sweeping in counties heretofore found 
infested. 
Table 1 . — Detailed results of alfalfa weevil scouting, 1939 
State 
and county 
Pields 
swept 
Total 
sweeps 
Weevils found 
Larvae : Adult a 
Fields 
infested 
1/ 
Number 
Number 
Number ! Number 
Number 
California 
• 
• 
Pnl ncn __ ________ 
g 
4,000 
0 : 
0 
Lake 
7 
2,900 
0 : 
0 
i 
500 
0 
0 
Placer 
2 
1,600 
0 
0 
— - 
Sacramento 
15 
7,500 
0 
0 
— 
Sn 1 p nrw 
g 
4 poo 
0 
0 
Sutter J 
10 
5,000 
0 
0 
Yolo— 
13 
6,500 
0 
0 
— 
Yubs - - 
10 
5,000 
0 
0 » 
Colorado : 
• 
• 
: 
Adams — 
3 
1,600 
0 
0 
— — 
Elbert — - : 1 
500 
0 
0 
— 
Larimer—' 
2 
1,000 
5 
0 
1 
Logan 
4 
1 ,250 
0 
0 
Morgan 
6 
3.100 
0 
0 
Sedgwick 
1 .300 
0 
0 
1/ 
J 
Idaho‘S : 
T.pmVi i ... . . 
Iowa: 
Pott awat tamie 
7 
3,900 
0 
0 
Mills 
1 
500 
0 
0 
— 
Montana: 
1 
Carbon 
5 
2,500 
0 
0 
— — 
Carter 
1 
500 
0 
0 
«... 
3 
1,400 
0 
0 
Powder River 
6 
3,050 
0 
0 
Richland 
6 
2,900 
0 
0 
"Ro mbnri — 
6 
3 .400 
0 
0 
Stillwater 
3 
J * 
1,450 
0 
0 
M* — 
Yellowstone 
10 
5,500 
0 
0 
— 
