BUREAU OF ENTOMOLOGY AND PLANT QUARANTINE 39 
Soon after early-season scouting began in June 1930, two additional cases 
of the disease were found in Indianapolis and single cases were reported from 
Baltimore and Norfolk. Infected trees found in outlying areas from 1930 to 
the end of the fiscal year were as follows: Baltimore 2. Brunswick 3. Cleve- 
land 33. Cincinnati 1, Indianapolis 10, and Norfolk 5 — a total of 60. 
During the year samples were collected from 50,729 trees showing apparent 
symptoms of the disease. Of these, 6.59") were found upon culturing to he 
infected with the causal organism. Segregated as to location, 99 were found 
in Connecticut. 43X3 in New Jersey. 2.140 in New York, and 43 at the four 
isolated infections in Indiana. Maryland. Ohio, and Virginia. 
Infected trees reported from all sources during the previous fiscal year num- 
bered 5,613. In comparison, there was a 17-percent increase in the number of 
infection cases in the fiscal year 1936. 
On a straight comparison of diseased trees discovered by scouts examining 
elms in foliage, the 1935 calendar year total is approximately 5,700, as com- 
pared with over 6,900 found by scouts in the summer of 1934. Infection dis- 
covered in the course of the survey of dead and dying elms following the 1935 
scouting and the intensive elm-sanitation campaign in the winter of 1935-36 
contributed heavily toward the confirmations recorded during the present year. 
Addition of the present year's confirmations to the previous totals brings the 
grand total of known disease cases on record in the United States on June 30, 
1936. to 15.473. 160 of which are in Connecticut, 10,109 in New Jersey, 5.144 
in New York, and 60 at the six isolated infection centers. 
EXTENSIONS OF WORK AREA 
Twenty-four elms infected with the disease fungus were found by scouts 
working in or just outside the 10-mile protective zone surrounding the known 
infected territory in New Jersey and New York. There were no extensions of 
the infected zone in Connecticut. Single cases of the disease were found in the 
towns of Carmel and Southwest. Putnam County, and in the towns of Bloomin- 
grove and Monroe, Orange County, N. Y. Infection centers containing five 
trees each were found in Union Township, Hunterdon County, and Wantage 
Township, Sussex County, N. J. Additional confirmations in New Jersey in- 
cluded three trees in Holmdel Township, Monmouth County ; two cases each in 
Sparta Township, Sussex County, and Independence Township, Warren County; 
and single confirmations each in Tewksbury Township. Hunterdon County ; 
Yernon Township. Sussex County : and White Township. Warren County. 
With the addition of the territory necessary to circumscribe these new in- 
fections the infected zone at the end of the year totaled 4.307 square miles, of 
which 2.529 square miles were in New Jersey, 1,495 in New York, and 2^'> in 
Connecticut. This was an increase during the year of 1,829 square miles in 
the known infected area. This increase in area cannot, however, be attributed to 
the current year's dissemination of the disease, since examinations of the annual 
rings of some of the trees showed the fungus to have been present in growths 
as far back as 1933. The disease apparently was in the trees for several years 
but lack of scout personnel had made it impossible to survey these areas. Dis- 
covery of infection centers in northwestern New Jersey pushed out the 10- 
mile protective zone around the periphery of the infected zone to include 90 
square miles in Pennsylvania. This was the only important change in the 
extent of the border zone. The protective strip at the end of the year included 
2,345 square miles, and the total work area comprised 6,652 square miles. 
For the purpose of adding to the regulated area the newly discovered infec- 
tions an amendment to the regulations supplemental to Notice of Quarantine 
No. 71 was made effective April 1. 1936. The modification added seven town- 
ships in Hunterdon County, one township in Middlesex County, three townships 
in Monmouth County, two in Morris County, live in Sussex County, and eight 
in Warren County. N. J. In New York added areas comprised seven towns in 
Orange County, four in Putnam County, and two in Westchester County. 
There were no further changes in the regulations. 
ERADICATION AND SANITATION ACTIVITIES 
There was no difficulty this year in eradicating diseased trees as rapidly as 
their presence was confirmed and permissions were obtained for their removal. 
State officials made all preliminary arrangements for removals, while the trees 
were actually removed by Federal or State eradication crews or on State con- 
