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CEREAL A1TDF0RAG2~CR0P INSECTS 
IffiEAT 
BLACK GRAIN STEM SAWELY (Trachelus tabidus E. ) 
■■■■’■ ■ I. ■ ■ - ■ \ 
General, C. C. Hill (August )j Examination of whea.tfields in Pennsylvania during 
June and July showed 4-percent infestation of culms in Eranklin County, No 
infestation in other parts of the State, liVheatf ields in Kent and Newcastle 
Counties, Del,, showed less than 1-percent infestation. On the Eastern 
Shore of Maryland on July and August 1 infestations were 4 percent in 
Cecil County, 5 percent in Q,ueen Anne County, and none in Dorchester County, 
Infestation in western Maryland wa.s 10 percent in Baltimore County, 4 per- 
cent in Carroll County, J percent in Montgomery County, and none in Freder- 
ick and Washington Counties, Infestations in Virginia, by counties, were 
as follows: Augusta, 1 percent; Campbell, 2 percent; Caroline, 2 percent; 
Essex, 3 percent; Fauquier, a trace; Rockbridge, a trace; and Shenandoah, 
1 percent, 
EUROPE^VN IiJHSAT STEM SAWELY ( Cephus pygmaeus L. ) 
Pennsylvania, C, C, Hill (August); Survey of wheatfields showed inf estcations 
of 2 percent in Adams, Berks, Cumberland, Huntingdon, Lycoming, Mifflin, and 
Perry Counties; 4 percent in Bucks County; 17 percent in Centre County; 1 
percent in Lancaster County; and none in Lebanon, Lehigh, Northumberland, 
Union, and York Counties, Infestation had not yet reached counties farther 
west in the State, 
TrVHILlT STRAW WORM ( Harmolita grand! s Riley) 
Utah, G, F, Knowlton and F, C, Harmston (August 3)» Injury is serious in some 
wheatfield-s at Ferrin, 
^.iTHEAT MIDGE ( Thecodiplosis mosellana Gehin) 
Michigan, R, Hutson (August 23): Specimen sent in from Charlotte, in southern 
Michigan, Rarovin Michigaii and has shovm up in a fei^r fields netar Lansing 
for the first time in several years, 
CORN 
CHINCH BUG ( Bli ssus leuc opterus Say) 
Pennsylvania, E, A. Richmond (August 28): Damage caused in several cornfields 
in Butler County, 
Missouri, L, Haseman (August 20): First-generation distribution flight took 
place in central Missouri during week ended August 10, Owing to weather 
conditions, eggs are scarce in cornfields. In one corn patch the first 
generation was made up of over 10 percent of the short-winged form. 
