INSECT PEST SURVEY BULLETIN 
Vol. 2 
V.a.y 1, 1922 
No. 2 
CEREAL AND FORAGE-CROP INSECTS 
WFEA.T 
Pennsy lvania 
Ohio 
Indiana 
Illinois 
Nebraska 
HESSIAN FLY (P hytophaga dag true tor Say) 
P. R, Myers (April 10). ^r*. Smith found two eggs of 
Hessian fly on this date, this being the earliest record 
of the spring brood of the fly at Carlisle, This is 
f our < days later than was the case during 1921." 
T. E, Parks (April). "Adults of the spring brood 
emerged in out-of-door cages in April. The brood is 
very lighb in all parts of the State ; due to very 
little early sowed winter wheat., 3 
H. A. Gossard (April 27). "An, examination made for 
Hessian fly eggs at booster, April 11, discovered nona; 
however, flaxseeds which Prof. T. H. Parks had obtained 
in Williams County were yielding flies in jars at 
Columbus April 14. I found a few Hessian fly eggs at 
^poster today, April 27," 
J. J. Davis (April 15). "As reported last fall, sowing 
at the right time was almost universal in the State and 
consequently there is comparatively little fly infestation 
at present. In the early sown fields there is an abun- 
dance of the fly." 
W. B.. Cartwight (April 12). •'First pupation March 19; 
first adults observed April 4. Only small part of 
brood has emerged to date. Oviposition scattered due 
to the rankness of growth of wheat. Records from 
Central ia." 
W. P. Flint (April 13). "No eggs could be found on 
plants at Urbana on April 16." 
M« H. Swenk (April 15). "The situation is virtually 
unchanged since my last report. Examinations of wheat 
fields in the vicinity of Lincoln early in April re- 
vealed moderate infestation in northeastern Lancaster 
and western Cass Counties." 
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