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POPLAR 
POPLAR BORER ( Saperda calcarata Say) 
Nebraska. M. H. Swenk (July 20 to August 25): Cottonwood trees in several 
localities were found infested' with S. calcarata during the latter part of 
July;' 
VAGABOND GALL LOUSE ( Mordwilkoja vagabund;-s Walsh) 
Montana. A. L. Strand (August 17): The vagabond gall louse, P^ vagabundus , is 
ve.ry injurious to poplar trees in north-central Montana. 
A LEAF BEETLE (Lina tremulae Fab.) 
Pennsylvania. J. N. Knull (July 30): The trembling aspens in various parts of 
Ella County are heavily infested with this insect. The leaves have turned 
brown on many of the trees owing to feeding of the larvae and adults. 
WALNUT 
WALNUT CATERPILLAR ( Pat ana i ntegcrrima G. & R.) 
Ohio. E. T7. Mendenhall (July 30) : The black walnut caterpillars are very abunda 
on black walnut and hickory trees and in many cases have defoliated the trees 
throughout central Ohio. 
Illinois. W. P, Flint (August 19): The walnut caterpillar is unusually abundan 
this -season on walnut, pecans, and hickories. 
Missouri. L. Haseman (July 27): The walnut ^atana is very abundant, especially 
in the western part of the State. 
Nebraska. M. H. Swenk (July 20 to August 25): Damage to walnut trees by the 
walnut caterpillar continued until the end of July, when it abruptly ended. 
L'ansas. H. R. Bryson (August 15): The datanas on walnut, apple, and oak have 
caused considerable damage. The most serious damage by the first generation 
was confined to walnut trees in tho ep.stern half of the State, as far south 
as Lyndon and Euporia. 
WILLOW 
EUROPEAN WILLOW BEETLE ( Plagiodera versicolora ' Laich. ) 
Connecticut. H. L. Bailey (August 22): The imported willow leaf -beetle has been 
found in considerable numbers in willow foliage in Bennington County. 
COTTONWOOD LEAF BEETLE ( Lina script a Fab'.) 
Montana. A. L. Strand (August 17): The willow leaf beetle is very common and 
injurious on shade trees in north-central Montana. 
