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FOREST A N-..P SHADE - TREE INSECTS 
CANKERWORNS ( Go omo t r i dac ) 
Connecticut . P. Wallace (Juno 21): The fall canlcerworn ( Alsophila 
P one t aria Harr.) is relatively scarce, heavy feeding having be on 
noticed in very limited areas in a few localities only. 
Now Jersey. M. D. Leonard (June 15 ) : Spring and fall cankerworns 
not at all abundant at Ridgewood, and very little evidence of 
feeding on oak and maple noticed. Apparently about the same as 
last year, or even a lighter infestation. 
C. H. Hoffmann (May 24): About an acre of woodland at 
l.iillburn showed heavy feeding by the spring cankerworm 
( Palcacrit a vernat a Peck) . 
Ohio. T. H. Parks (Juno 21): Spring and. fall .cankerworns , which 
were so abundant during Hay, disappeared during the first week 
in Juno. 
Indiana. J. J. Davis (June 21): Both fall and spring cankerworns 
very abundant in the northern half of the State, especially the 
northeastern area from Anderson north. Elms and untreated apples 
attacked most severely. 
Iowa. K. E. Jaaues (June): Noted in southern Iowa in Johnson, 
Washington, Clark, Wapello, and Decatur Counties. 
Missouri. A. C. Burr ill (Juno 25): Cankerworns webbing leaflets and 
feeding in scattered groups of two or three on tree-of-heaven 
in Jefferson City. 
North Dakota. J. A. Munro (June 22): Spring cankerworns abundant in 
the vicinity of Minot. Lighter inf estatiens at Park River, 
Grand Porks , and northwards . 
Nebraska. M. H. Swenk (June 20) : Report of some injury to shade 
trees by spring cankerworm received from Rcdwillow County on 
Juno 8 . 
ELM SPANWORM ( Ennomos subsignarius Kbn.) 
Connecticut. G. H. Plumb (June): Young larvae were found feeding on 
elm at Monroe on May 26. On June l4 larvae wore spinning down 
from foliage and pupating. Stripping not nearly so extensive 
as in 193S; most larvae found around periphery of 193^ infesta- 
tion center. As in 1938, tulip poplar was not attacked. 
A GEOMETRID ( Physostegania - pus talar ia Guen.) 
Pennsylvania. T. L. Guyton (Juno 17): Adults numerous in woodland 
at McAlistcrvillc. 
