-25U- 
Michigan. R. Hut a on (June 22>r Infestations ranging up to 10 percent 
are common in the southeast. 
Missouri. L. Haseman (June 2*0: This pest is not causing any serious 
lodging of wheat, . -. ., 
Nebraska. M. H. Swonk (June 22): The hessian fly which, as a direct, 
cumulative effect of successive drought years, reached an excessive- 
ly low population level in 1937, ie again on the increase. Wheat- 
fields examined in southeastern Nebraska, especially in- Richardson 
and Pawnee Counties, in sono instances showed moderate infestations 
late in May and early in June. Though no commercial damage occurred, 
infestations arc sufficient to indicate that the fly may have to he 
taken in consideration when wheat is seeded in the fall of 193S. 
Kansas. J. R. Horton (June 2l): The spring period locally was 
characterized by moderate temperatures and frequent rains, a con- 
dition favorable to fly increase. This situation has not been 
sufficiently prolonged to raise the low general level of fly 
population surviving from 1937 to the level of outbreaks. It is 
difficult, if not impossible, to find a single outbreak. To show 
the possibilities in such a season, however, the second generation 
has increased in one especially favored, natural spot on spring 
wheat to 67 times the population of the originating first genera- 
tion on winter wheat, 
Kansas, R. H. Painter (June 2?) : The hessian fly has had a second 
generation wherever there are late tillers or late wheat plants. 
Eggs nore laid under ideal conditions which reaited in almost 
■ 100-percent -hatch. 
SORGHUM WEBWORM ( Celama sorghiolla Riley) 
Virginia. W. J. Schoene (June 21) : Specimens received from Roqkymount, 
Franklin County, and Chatham, in Pittsylvania County, in heads of 
rye. Injury has been reported from several sources. (Dot. by C. 
Heinrich. ) 
WHSAT STEM MAGGOT ( Mcromyza americana Fitch) 
Nebraska. M. H. Swenk (June 22): This maggot caused numerous "'hitened 
wheat heads in southeastern Nebraska, from Richardson County west- 
ward to Franklin County, early in June. 
Kansas, R. H. Painter (June 25): The wheat stem maggot has returned to 
its normal abundance after being at a very low ebb last year. 
