•35- 
T7S3T3EN UHSAT-SISIJ MAGGOT ( Hvlemvia cerealis Gillette) 
Nebraska Myron K, Swenk (Ifay 15). "The <5iutbreak of western wheat-stem maggot re- 
ported last mor.th which T;as brought to our attention on April 9 proved 
to be very local, involving only a small area in I.:orrill County, bet\7een 
Bridgeport and Allisnrs* The maggots continued boring jn the stem of 
the wheao in the i??.fe?ted fj.elds tmtil anov.t April 20. On ilay 6 flies 
began emerging from pupa-^ia, jn cnv i'earing Cc^ges and continued coming 
out for several daye. TJiese pupsria ha/e devaloped from maggots collect- 
ed April 11. V/hG;hQr these files xrxll start another brood of maggots 
on the present v;heat crop is yet to be determined," 
WHEAT STBAVW70RM (HarTn oI.:ta gr-^r.de Eiley) 
Missouri Leonard Hasaman { Jime 15) . "This tr?.sect is occurring in absut normal 
numbcf^ at Columbia* In laboratory, adults emerged liay 7 to 10. One 
"Wingless fona eaerged Hay 10." 
JOBTTV/ORM ( Karmolita tritici Pitch) 
Indiana J. J, Davis (June 15) „ "The jointworm is apparently more abtmdsnt than 
last year but does not yet appear as a serious menace." 
Ohio 
H. A. Gossard (June 23). There is very little Joint\7orm, though 3 to 5 
percent infestation is reported from a few counties. Practically ail 
northeastern counties show 1 or 2 per cent of H.vaginicola in every 
field. 
GEEATER V7HEAT STEM MAGGOT ( Mersipyza americana Pitch) 
Oregon 
Illinois 
Nebraska 
A. L. Lovett (telegram, July 1}. Serious infestation of Meromyza 
anericsn a on spring wheat in Union County, Oregon, Hundreds of acres 
witn from 10 to 75 per cent infestation. Date of sowing of little im- 
portan.ce. Volunteer wheat main source of contamination. Main brood 
are mature larvae or pupae. Scattering adults, eggs, and young larvae 
are to be found. 
W. P. Flint (June 19). "Much more abundant thai usual in central and 
northern part of State. Reports of from 5 to 7 per cent damage have 
been received. 
M. E. Swenk (June 15), "Scattering injury by the greater wheat-stem 
maggot was noticeable in eastern Nebraska during the second vreek in 
June . 
Missouri 
Texas 
GRSaiT BUG ( Toxoptera graminxam Rond. 
A. 
in 
C. Burrill. "Pound this insect with Macrosiphum sp . and Aphis avsna p 
Perry and Jississippi C-^unties whero oats were damaged from ^0 to ~ 
75 per cent in Perry County, and 100 per cent in parts of Mississiooi 
County. The infestation has now cleared up." 
J. B. TZatkins (May 27). "Unusually heavy infestation in Cooks, Gr— -.^ 
Denton. Collin, Fannin, Hunt, Dallas, Rockwall, Sllis, Hill, Som«r-^.-.^ 
