38 ANNUAL REPORTS OF DEPARTMENT OF AGRICULTURE, 1944 
vious years. Summer scouting was terminated early in October, and 
the winter Bcouting program, which was to continue through the 
remainder of the fiscal year, was begun in December. 
Supplementing the scouting on foot and in automobiles during the 
summer of 1943, extensive trapping of elm bark beetles was under- 
taken by piling elm loirs or other attractive elm material at selected 
points in the work area for the purpose of supplying beetle specimens 
for laboratory culturing. About one-third of the trap loirs became 
infested with bark beetles. A few of the samples of wood and bark 
cut from the infested material disclosed the presence of the disease 
in the locality. 
First-record infections were reported from 120 towns, townships, 
and boroughs — 15 in Connecticut, 3 in New Jersey. 32 in New York, 
8 in Maryland, 3 in Massachusetts, 31 in Pennsylvania, and 28 in 
Ohio. 
Spread of the disease, as evidenced by both summer and winter 
scouting, was rather extensive in New York, with more moderate 
increases of territory in Pennsylvania and Connecticut. Only a few 
scattered new infections were reported from New Jersey and Massa- 
chusetts. Westward progress of the disease in all the main infested 
areas appears to have been greatlv retarded this year. At Indian- 
apolis no additional territory was found invaded. There was a some- 
what uniform and large expansion of territory in the vicinity of 
Athens, Ohio. 
First-record infections discovered in New York extended the iso- 
lated area at Binghamton roughly one tier of towns northward and 
two tiers eastward. The principal additions to the main New York 
area were eastward in Columbia and Rensselaer Counties. 
Extensions of the disease in Pennsylvania were largely southwest- 
ward in Delaware and Chester Counties plus infections discovered in 
intervening towns in Montgomery County that had previouslv been 
surrounded by disease areas. This filling in of sections already sur- 
rounded by disease areas also caused increases in infection in the 
Wilkes-Barre isolated zone. 
Eastward extensions of the disease in Connecticut were confined 
largely to confirmations of one or a few trees each in towns near 
known disease territory, several instances of infection being found in 
intervening territory. 
The three first records discovered in New Jersey connect what had 
previously been an isolated infection with the main disease area in 
Burlington County. 
The first-record confirmations in Massachusetts were in Berk- 
shire County in the town of Mount Washington, already surrounded 
by towns in which the disease had been found; in West Stockbridge, 
adjacent to the known disease area: and in Pitt-field, one town 
removed from the nearest known disease case. All of the 13 diseased 
trees Found in the State during the year were eradicated with State 
cooperat ion. 
In Maryland early winter scout in c: in the vicinit y of the former 
Brunswick disease area disclosed 8 diseased trees, 6 in the Monocacy 
River valley north of Frederick, and 2 I pees 2 miles north of the Poto- 
mac River and 8 miles west of the Monocacy. The outermost of these 
were slightly more than 20 miles apart. Addit tonal men were assigned 
to this territory for exploratory scouting. During March ten addi- 
