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KES5IAN FLY ( Phytcphaea destructor ) 
Illinois. Extension News Letter (iferch 50) . '.'Moderate numbers in central part of 
the State in all fields /""seven "days after advised fly-free-date 6f seed- 
ing. Wintered well. Emergence started in southern part of State March 
19, All in pupal stage in central part of State March 22. 
W. P. Flint, (April 16). "Hessian fly is present in normal numbers over 
the entire State where conditions were favorable to the fall brood; but 
unfavorable to the spring brood. Parasites are scarce. All early sown 
wheat was heavily infested int the fall of 1920; the majority of flies 
survived the winter, but: .the weather has ^oeen unfavorable for the spring 
brocd. Only a small number of eggs have been laid; some maggots now in 
wheat; numbers of eggs still on plants in Central part of the State." 
Indiana. J. J. Davis (April 4). MT:r e began to find fly eggs in appreciable numbers 
on April 4 'at Lafayette. There is every indication for a large spring 
brood and unless parasites become conspicuous there will be a big fall 
brood. We are advising against planting spring wheat and are not recom- 
mending the plowing under of infested wheat except in hopeless cases. 
Wheat generally wintered in fine condition and even where more or less 
heavily infested with the late wave of fly last Fall, Wheat on properly 
fertilized ground tillered well and has outgrown the injury." 
W. ff. L,..rrimt:r (April S) . "Hoesitx fly Is coming out in numbers at La- 
fgyotte ai.d macy oggs arc beirg l a id at this time. Th : Is in ex- 
cellent growing condition however and has stooled out considerably, so 
that in spiet o^ the fly there seems to be a much better prospect for the 
wheat than at this time in 1920.'' 
Ohio. Extension News Letter (March 3C) . "Some fly in fields sown October 7. 
Wheat sown middle of October in Central part of State best. Few early 
sown fields,, all such fields 50fo to 90f infested. No pupation nrion to 
March 17." 
H. A. Gossard (April 9). "From last years observations we are expecting 
considerable damage by Hessian Fly this season, most of the brood being 
derived from flies which issued about the middle of October over all parts 
of the State. Because .of our well organized extension efforts in the 
early fall, all wheat seeding was delayed untii the last few days of 
September or thefirst of October in northern Ohio and until the 10th of 
October of towards the middle in southern Ohio. It is therefore in nor- 
thern Ohio that we expect seme fly damage, but the state will suffer 
ciach less than during the season If 1920." 
Nebraska. Myron H. Swenk, (Aprin 15). "Has been present in sub-normal numbers 
since the heavy outbreak of 1914-1915. In Fall of 1920 some increase in 
numbers m southern Nebraska, south of Nemaha, Lancaster and Hall counties. 
