Iowa 
-311- 
C. H. Ainslie (October 25): In Monona County volunteer and early-sown 
wheat is heavily infested. The fly in volunteer wheat has largely 
pupated although eggs are still to be found on the blades. In young 
wheat larvae cf all sizes are numerous and the outlook is unfavorable 
for 192U % 
Minnesota A, G, Buggies (September 29): The Hessian fly seems tc be decidedly 
en the increase. Last yeer we found it doing considerable damage in one 
cr two counties. This year I have had reports from a number of counties, 
but no reports en the extent of the damage done. Unfortunately I have 
had no time to devote to the problem and have been unable so far to 
work out the fly-free dates. Practically all of the infested counties 
so far are in the Bcnvthern part of the State and are in the region where 
winter wheat is being grown more and more extensively, 
Missouri 0. C. I'cBride (October 6): The adults were somewhat later in emerging 
this fall than in past years. Most of the farmers and county agents 
are cooperating with the extension entomologists and seeding after the 
fly-free date, 
K, C» Sullivan (October 19): I wish to report remarkably close 
observance of fly-free date and at present the fly situation looks 
very favorable. 
North C N. Ainslie (August 31): Hessian fly is present in every field all 
Dakota over thss part of the State (Mandan). I took it in Golden Valley 
County and. today it was found at Dickinson when I stopped there between 
trains. 
Nebraska M. H. Swenk (September 15-30) : At the Hessian fly observation station, 
established near Plattsmouth, Cass County, after a few days of 
comparative inactivity, the flies resumed emergence on September 18, 
bringing on a wave of emergence on September 21, on which date over 
2/400 eggs were laid on 100 wheat plants, and nearly 60 per cent of 
the flaxseeds had given up their flies. Emergence continued steadily, 
the last wave occurring on the 26th to 29th of September, and then 
rapidly dropping off. 3y September 27 less than 10 per cent cf the 
flaxseeds contained larvae or pupae, and on September 30 nearly 96 
per cent of the flaxseeds were empty, the pupae in flaxseeds on that 
date representing only a fraction of 1 per cent of the whole The fly- 
free date was announced for October 1 at this locality. (October 1-20): 
In the portion cf southeastern Nebraska where the Hessian fly was most 
injurious this spring, the farmers mostly awaited the flyrfree date 
before sowing their wheat this fall. In some counties, such as Cass and 
Richardson, fully 95 per cent of the farmers awaited the announcement 
of the fly-free date. Examination of the young plants cf the new 
crop shows practically no infestation in such late-sown fields. 
