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GREAT BASIN TENT CATERPILLAR ( Malacosoma frazil is Stretch) 
Oregon. J. M. Whiteside (June 26): After a lapse of nearly 10 years, 
this species has reappeared in epidemic proportions on the Deschutes 
National Eorest, where it is causing a severe defoliation of bitter- 
hrush ( Pur shia tridentata ) . As bitterbrush is the most important 
native Browse and forage plant of western ranges, its defoliation 
for even 1 year is serious. Last epidemic on this forest occurred 
during the period 1928-30. Many pure stands of hitterbrush com- 
pletely killed. Appearing on an area of about 640 acres in 1937* 
these caterpillars spread over such a large area in 193 ^ and 1939 
that control measures are almost impossible. 
PALL WEB WORM (ll yphantria cunca Drury) 
Connecticut. M. P. Zappe (July 13 ): Apparently much more abundant than 
normal on many kinds of trees and shrubs in New Haven and Eairfiold 
Counties. 
New York. N. Y. State Coll. Agr. News Letter (July 10): Becoming some- 
what abundant in Rockland and Ulster Counties, in the Hudson River 
Valley, and a few noticed in Clinton County, western New York. 
R. D. Glasgow (July 17) J The territory around Millbrook, 
Dutchess County, in the Hudson River Valley, is experiencing its 
heaviest outbreak since 1930 . 
New Jersey. E. A. Soraci (July 1): Quite abundant on mixed trees over 
the northern half of the State. 
Georgia. 0 . I. Snapp (July 20): Infestation at Port Valley, central 
Georgia, about that of an average year. Nests of full-grown larvae 
now common in most pecan groves. 
Mississippi. C. Lyle (July 24): Generally abundant on pecan, persimmon, 
and hickory trees in most sections of the State. 
PALL CANKERWORiv; ( Alsophila pome tar ia Harr.) 
North Carolina. B. H. Wilford and R. J . Kowal (June 30 ) : Defoliation in 
areas along the Mount Pisgah motor road in Transylvania, Haywood, 
and McDowell Counties more severe this year than any year since 
193° > defoliation along the Mount Mitchell motor road less than in 
previous years. 
SPRING CANXERWORM ( Pal oacrita verna ta Peck.) 
North Dakota. R. H. Nagel (June 12): Complete defoliation of elm by 
May 30 in the park area of the resettlement project in the Shcyenne 
River Valley, in Richland and Ransom Counties. About 200 acres of 
mature river-bottom elm observed to be damaged in Shenford Township. 
Injury to wild plum, ash-, and hackberry. 
