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Nebraska 
Ohio 
Minnesota 
North Dakota 
South Dakota 
Nebraska 
M. H. Swerk (June 15-30): The first report of trouble 
with the wheat-stem maggot for the season involved a case 
•of 15 per cent. damage in a field of rye in Webster County, 
reported on June 28. 
■ WHEAT JOINT WORM ( Harmolita tritici Fitch) 
T. H. Parks (July 15) t This insect was found to be on the 
increase in all parts of the State. Some fields were found 
to have as high as -30 to 35 per cent infestation, but this 
did not ca\ise lodging or any perceptible loss. 
GREEN BUG ( Toxoptera gra minum Rond. ) 
L, Sheldon (July 9): The green bug is moderately 
abundant on grain in the northwestern part of the Lac qui 
Parle County. 
J. A- Munro ((July 17): Of the various pests affecting 
cereal crops, the grain aphid has proven the most serious 
so far this season. Reports have been received from county 
agents and farmers from 7/ard, Stutsman, McLean, and Grand 
Forks Counties regarding. serious local infestations. 
In a ' number of instances. the reports indicate that grain 
fields had been totally destroyed and farmers were plowing 
under these fields. The larvae of the western syrphid 
(Syj.phus PRIJ^L?S 0- S„") and- ladybird beetles were observed 
feeding-' on the aphids- in samples of infested grain sent in 
to this office for identification. Apparently, the natural 
enemies of the aphids- began activities too late to prevent 
serious injury to crops this season. t 
H. C. Severin (July 18): The green bug did much damage 
to small gL'ain. 
M. H. Swenk (June 14-30): • During the period from June 14 
to 30; 1930, Nebraska experienced its first wide-spread and 
destructive outbreak. In the spring of 1907, when this pest 
was so destructive in Texas, Oklahoma, and Kansas, its 
parasites had gained ccntrol by the time it reached Nebraska, 
and no commercial damage was done in this State. In late 
October and November of 1910, 1920, and 1924, there were 
local and unimportant outbreaks on the winter wheat re- 
spectively in Polk, Dodge, Snn^ders, .- - Butler, rnd Phelps 
Counties, while in June of 1930 and in 1928 there were 
scattered infestations- respectively in', the whaat and oats 
in Sarpy, Webster, and Harlan Counties and in the oats in 
Kbit County. In neither of these springs, however, were there 
any important -'crop losses-, as there were during the present 
outbreak. '•' '• ■ . ■'•'•-' -•'•'■■ 
The present outbreak began in- south-central Nebraska, in 
