-303- 
of 50 stems each; the rest of 100 or more stems each-. 
State section 
Number of coun- 
ties 
Number of san- 
pics 
Percent of stems 
infested 
Kansas; 
Northeast 
Southeast 
North Central 
South " 
Northwest 
- 6 
12 
9 
14 
7 
36 
47 
47 
93 
26 
25-1 
15% 
27% 
15i 
Missouri: 
Northeast 
Bast Central 
Southeast 
Northwest 
West Central 
Southwest 
11 
16 
5 
12 
11 
6 
28 
93 
27 
43 
47 
26 
34% 
31% 
25% 
18% 
35«£ 
20% 
Nebraska: 
Northeast 
Southeast 
North Central 
South " 
Southwest 
4 
19 
1 
17 
1 
25 
186 
7' 
122 
• 5 
26-1 
32^ 
34% 
27% 
4% 
Oklahoma* 
Northeast 
. North Central 
Northwest 
25 
29 
13 
7% 
3% 
3% 
Iowa: 
Southwest 
8% 
Nebraska. M. H. Swenk (August): This survey was started shortly after harvest 
and lias just been completed. In it a total of 344 fields, located in 41 
counties, were sampled. From 5 to 15 samples were taken from a county, 
according to size, the apparent density of the fly infestation in it, :or father 
reasons. Each sample consisted of either 50 or 100 wheat stems taken at 
random from the field. The counties included in the survey involved all of _ 
southeastern Nebraska north and west to and including Washington, Dedgo, ■• 
Colfax, Platte, Nance, Howard, Buffalo, Dawson, Frontier, and Furnas Counties. 
The bulk of the samples were collected by 0. S. Bare, Extension Entomologist 
of the College, and H. H. Walkdcn and J. R. Horton, of the U. S. Entomological 
Laboratory at Wichita, Kans. From the survey it is apparent that ..the principal 
threat of Hessian fly damage this fall lies in Thayer, Fillmore, Jefferson, 
York, Seward, Lancaster, Johnson, Butler, Colfax, Platte, Nance, Merrick, 
Hamilton, Howard, Hall, Buffalo, Kearney, and Phelps Counties, and the in- 
dications in these counties arc for a heavy main fall brood and a severe 
attack on all of the wheat that is sown. too early to avoid the attack of this 
brood. With weather conditions favorable' for the fly, most of the other 
Nebraska counties included in the survey "are also likely to experience serious 
damage by this pest. 
