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WHITE GRUBS ( Phyllophaga spp. ) 
Michigan R. H, ^ettit (June 1): I received today a few dozen samples of 
Lacljno sterna, which is reported from Alamo, in Kalamazoo • 
County, as having defoliated "butternut and walnut trees. It is 
also reported £s working on maples to a less extent, 
Indiana J. J. Davis (July l6): The species involved in the reported 
hickory defoliation at Connersville on June 11 (see Vol. 3» 
No. 4, Insect Pest Survey Bulletin, July 1, p. 155) are 
principally Lachno sterna hirticula Knoch with occasional 
specimens of gibbosa Burm. ,fusca Froel. ,and ilicis Enoch. 
WHEAT 
HESSIAN FLY ( Phytophaga destructor Say) 
New York W. R„ Walton (July 30) : Professor Crosby reports that partial 
count indicates that Hessian fly is worse in western New York 
than last year, 
Maryland P. R, Myers (July 19): The average spring infestation of our 
plats at Cambridge has dropped from 71 per cent last stcraner to 
6 per cent this summer. This large decrease in infestation is 
ptobably due mainly to two factors; first, the protracted 
emergence of the Hessian fly last fall, in which about 12 per 
cent of the larvae hatching from late-laid eggs failed to mature; 
second, the generally late sowing of wheat last fall throughout 
the East on account of the drought, 
Virginia P. R. Myers (July 19) : The average infestation of the Hessian 
fly in the plats located at Warrenton is 4 per cent less this 
summer then it was last summer. 
Ohio T, H, Parks (July 19): A wheat insect survey in 32 counties 
shows no serious damage anywhere. The State average infestation 
of straws is 4,4 per cent, compared with 10,9 per cent one year 
ago. In 10 northwestern counties only 9 early-sowed fields were 
found. These averaged 44 per cent infestation, with one field 
94 per cent. The average of 81 fields sowed after the safe 
dates in 10 northwestern counties was 3*9 P er cent of straws 
infested. The northern half of the State has 6,4 per cent 
infestation while the southern half has only 0,6 of 1 per cent. 
No damage is expected this fall, 
Wisconsin Emil Swain (July) : This pest caused almost a total loss in the 
vicinity of Osseo, in Trempealeau County. 
Minnesota A, B. Ruggles (July 23): The Hessian fly is becoming well 
established in certain sections wtosEe winter wheat is being 
grown. 
