FOREST A IT D SHADE- TREE INSECTS 
GE NERAL FEEDERS 
GIPSY MOTH ( Porthetria dispar L. ) 
GENERAL A. J. Burgess: During the Slimmer of 1925 the gipsy moth infes- 
STATEMENT tat ion over most of the infested area was quite light and no re- 
cords of defoliation caused by this insect were secured excepting 
on Cape Cod where there was a very sudden increase of the insect. 
It has been estimated that on Cape Cod nearly 25,000 acres were 
completely defoliated and nearly as many more acres were partially 
defoliated. This heavy defoliation occurred in towns where no 
large areas were defoliated in the preceding year. 
Although the gipsy moth infestation was light over most of the 
infested area, field observations indicate that it has increased 
slightly, so that more eggs were deposited this simjner than in 
the previous season. 
The Federal scouting and extermination work has been carried 
on within the barrier zone and New Jersey in cooperation with 
the States involved. The barrier zone embraces a strip of terri- 
tory from the Hudson River, N. Y. , to the eastern houndary of Berk- 
shire County, Mass. , and averages about the same width north to the 
Canadian border, and south to long Island Sound. The entire zone 
has been scouted and only small infestations have been located, all 
of which have been treated. 
In New Jersey the scouting work in the fall of 1924, around the 
center of the original gipsy moth colony, showed that the infesta- 
tion had been greatly reduced. Accordingly the scouting in this 
area was reduced so as to release men to carry on scouting in a 
strip of territory about 10 miles wide surrounding the entire in- 
fested area. This marks the beginning of the closing-in process 
which will result in a greater reduction of the territory by work- 
ing from the outside toward the center. Only one small infesta- 
tion was located within this outside area. This infestation and 
all of the infestations found in the inside territory have been 
thoroughly treated. Fewer infestations were found during the 
year than at any time since the discovery of the gipsy moth in 
New Jersey. 
The gipsy moth situation in the barrier zone and in New Jersey 
is very encouraging. The gipsy moth infestation located last 
year by the Canadian authorities at Henrysburg, Quebec, has been 
thoroughly treated by then and no new infestations have been lo- 
cated. 
No change has been made in the quarantine area. 
BROW-TAIL MOTE ( En-pro ct is eh fysorrh oea L. ) 
A. F. Burgess: The brown- tail moth situation continues to be 
about the same as reported last year. In the southeastern part 
of New Hampshire and southern Maine there was considerable de- 
foliation in neglected apple orchards but no severe defoliation 
in woodland areas has been recorded. Over most of the infested 
area the infestation is very light. No change has been made in 
the quarantine area. . „"s6l 
