32 ANNUAL EtEPOBTS OP DEPART .M K XT OF A.GBICTTLTUBE, v 
852 in New fork, and 224 in Connecticut This was an Increase of approxi- 
mately L,075 BQnare miles over the area known to be Infected at the end of 
the previous fiscal year. The tO-mile protective aone in which g and 
sanitation work were also performed amounted to an additional u.iid square 
ii iies, making a total work ana of 4,648 square miles. 
PROGRESS IN REMOVAL OF DISEASED TREES 
Just prior to the 1934 field scouting, 1,4S7 infected trees had been removed 
and 5 trees known to be infected were standing. This was the ne 
approach to complete removal of infected trees accomplished Dp to that time. 
As the summer's scouting progressed the number of standing Infected trees 
increased, until at the end of .July there were "J. its:; infected trees still stand- 
ing. Cases of infected trees numbered 1,(582 in July, 1.998 in August, 391 in 
September, and 228 in October. When determinations of InfectiOD began to 
decrease in September an opportunity was afforded for reducing the number 
of standing infected specimens. With the exhaustion in September of New 
Jersey funds allotted for removal of infected trees, there still remained at the 
end of 1!)34 a total of 1.325 infected trees, 1 of which was in Connecticut, 4 
in New York, and the remainder in New Jersey. Eradication crews organ- 
ized under the allotment of P. W. A. funds available late in December soon 
reduced the number of infected trees as the sanitation work progressed through- 
out the affected territory. By February 2 the few remaining infected trees 
in Connecticut had been felled and burned. New York was entirely free from 
standing infected elms by March 30. In New Jersey, all elm trees that could 
be confirmed by laboratory diagnosis were eradicated by April 15. Laboratory 
cultures made from dead and dying trees removed during November and 
December and in the course of the large-scale sanitation program extending 
from December 28 to May 10 determined 416 cases of Dutch elm disease. 
Scouting by the permanent personnel and newly trained scouts placed in the 
held tinder the work-relief program in June located S91 additional infections. 
With this addition of 5.G06 confirmations of infection during the fiscal year. 
the total of diseased trees detected thus far in the major infected zone 
increased from 3,255 to 8,861. 
QUARANTINE RESTRICTIONS TO PREVENT ENTRY OR DISSEMINATION 
OF INFECTION 
Foreign Quarantine No. 7<». originally effective October 21. V.';!.".. to regulate 
the importation from Europe of elm logs or elm material with bark attache-!. 
was amended, effective January 1, 1935, to place an embargo against the 
importation of elm veneer logs. Domestic Quarantine No. 71, effective Feb- 
ruary 25. 1935, imposes a rigid embargo on the movement of all plants ov parts 
of plants of all species of the genus limns from the known diseased area in 
Connecticut, New Jersey, and New York. State quarantines prohibiting the 
intrastate movement of host material from infected sections are also in 
operation. 
COOPERATIVE ENTERPRISES 
Dnder cooperative agreements between the Bureau and the infected States. 
each organization has accepted certain definite phases o\' the work. Scouting 
tor the purpose of Locating diseased trees and dead or dying elms is designated 
as a Federal activity. < lulturing of twigs from elms suspected *'\' harboring 
infection is performed by employees of this Bureau working under the super- 
vision of the technician in charge of the laboratory of the Division of i 
Pathology, Bureau of Plant industry, at Morrlstown, N. J. information con- 
cerning infected specimens Is turned over to the state control organisation. 
State Officials then Contact owners of diseased, dead, ov moribund trees t.» 
secure permission for removal. Most of the tree removal in New York and 
New Jersey was performed under contracts let by the state projects to com- 
mercial tree firms, municipal shade tree commissions, and other organisations 
experienced in this type of work, a number of eradication crews were also 
employed on State funds. Insofar as funds were available, the few diseased 
trees requiring removal in Connecticut were felled and burned by town author- 
ities In New Jersey, contracts for diseased tree eradication rapidly exhausted 
the $30,000 appropriation and the Stale eradication program was halted on 
September 15. New York state continued its removal of infected trees, but 
