BUREAU OF ENTOMOLOGY AND PLANT QUARANTINE 33 
Table 11. — Gypsy moth control work, fiscal year 1986 Continued 
Project 
Spraying 
State 
Date 
started 
Date 
com- 
pleted 
Infesta- 
tions 
sprayed 
Wood- 
land 
sprayed 
Residen- 
tial prop- 
erties 
sprayed 
Trees 
in open 
sprayed 
W. P. A 
1936 
1936 
Number 
Acres 
Number 
Number 
New Hampshire 
do 
June 1 
July 2 
3 
207 


Do 
C. C. C._- 
Vermont... 
W. P. A 
C. C. C 
W. P. A 
C. C. C 
W. P. A 
June 1 
June 1 
July 2 
"Juiy'T 
11 
" 18" 
1,238 
2,"lS3" 
13 
7" 
678 
Do.. 
Massachusetts 
1,980 
Do... 
Connecticut 
Do 
do 
c. c. c 
W. P. A 
June 1 
July 3 
27 
3,516 
41 
33 
do 
Pennsylvania 
do 
fW. P. A 
\C. C.C- 
May 18 
July 2 
157 
9,641 
6,522 
132,042 
Total.. 
216 
16, 785 
6,583 
134, 733 
' 
Grand total 
216 
16, 785 
6,583 
134, 733 
PROGBESS IN GYPSY MOTH CONTROL 
A decided gain has been made during the year in gypsy moth control. In 
Maine several infestations have been found outside the present gypsy moth 
quarantine line, but a considerable number of towns have been scouted along 
this border where no infestation has been discovered, and the same is true in 
northern New Hampshire. In Vermont two small infestations found outside the 
.area under quarantine have been thoroughly treated, and it is believed that the 
insect has been exterminated in these localities. Treatment applied in the 
remainder of the New England area has been effective in materially reducing 
the infestation, as evidenced by the fact that in the treated areas no defoliation 
has been found during the present summer. Conditions in the barrier zone have 
improved as a result of the work, and no egg clusters have been found in New 
York west of the barrier zone or in New Jersey. Satisfactory progress has been 
made in Pennsylvania : although the scouting of additional woodland territory 
nearest the area first found infested has disclosed infestations, these were given 
prompt attention. 
CONDITION OF GYPSY MOTH INFESTATION IN NEW ENGLAND 
Iii the summer of 1935 defoliation by the gypsy moth was more extensive than 
that recorded the previous year. For the entire infested area 540,769 acres of 
woodland were found with from noticeable to complete defoliation, surpassing 
the total acreage recorded for 1934 by 48,408. In Maine and New Hampshire de- 
foliation was much more extensive than in the previous year. Vermont showed 
somewhat of an increase, though defoliation has never been extensive in that 
State. For Massachusetts a considerable decrease was recorded: this resulted 
from a decided decrease in the southeastern portion of the State which was not 
entirely offset by very great increases in the area between the western border of 
Worcester County and the Connecticut River, in which section there was approxi- 
mately five times as much defoliation as had been noted the previous year. 
Rhode Island showed quite a decrease from 1934, but Connecticut showed some 
increase. The acreage of defoliation immediately east of the Connecticut River 
was materially reduced during the summer of 1936. 
BROWN-TAIL MOTH PROJECT 
The brown-tail moth project was begun August 5, 1935, under a Works Progress 
Administration allotment for work on that insect in a.ll of the New England 
States. It was necessary to organize this project in close cooperation with the 
101897—30 3 
