BUREAU OF PLANT QUARANTINE 13 
was placed under regulation. By the inclusion of two towns in Cattaraugus 
County, N. Y., a small area was added to connect the infested city of Salamanca 
with the main regulated zone in Pennsylvania. 
Except for the extension of the regulated territory, there were few important 
changes in the twelfth revision of the quarantine regulations effective December 
1, 1933. The territory from which quarantined fruits and vegetables may be 
shipped without certification and to which similar articles may not be moved 
without certification from the remainder of the regulated territory, was extended 
to include the isolated areas of Waterville, Maine, and Henrico County, Va. Slight 
modifications were also effected to exempt certain commodities not subject to 
infestation and to simplify the certification procedure on lot freight shipments. 
CERTIFICATION AND TREATMENT OF NURSERY AND GREENHOUSE STOCK 
Nursery and greenhouse scouting, begun in Virginia, Maryland, and Delaware 
in May 1932, was extended on July 1, 1933, to classified establishments in New 
Jersey and Pennsylvania. In Connecticut and northern New York, crews started 
scouting on July 10. Such scouting began in southern New York and on Long 
Island on July 17. In New Hampshire, Vermont, Massachusetts, and Rhode 
Island the work was organized from July 19 to 2-4. The examination of classified 
premises in Delaware, Maryland, and Virginia was completed shortly after the 
middle of August. Similar work in Pennsylvania, New Jersey, and the more 
northern quarantined States was concluded early in September. As a result of 
the 1933 scouting of 1,978 theretofore uninfested nurseries and greenhouses, 
infestations were discovered in 133 property units. There are now 2.376 regular 
shippers who comply with the requirements for maintaining a classified status 
under the regulations. The premises of 604 of these are infested, and special 
safeguards are required before shipments from them are allowed. This is a net 
increase of 117 infested classified establishments for the year. 
Establishments added to the classified list as a result of* the extension of regu- 
lated territory effective December 1, 1933, number 33. Of this total 3 are located 
in West Virginia, 2 in Virginia, 19 in Maryland, 3 in New York, and 6 in Maine. 
With moderate weather conditions prevailing until late in the fall of 1933, 
nursery stock continued to move under certification until the end of November. 
Ordinarily it is not possible to dig this material much after the latter part of 
October. Severe winter weather, with heavy snows and subzero temperatures, 
caused a virtual suspension of nursery activities during February. Even ship- 
ments from greenhouses were not considered safe. In nurseries it was impossible 
to dig stock from the frozen ground. Until the latter part of March, continued 
frost in the ground further delayed spring nursery shipping. When the weather 
at last permitted the ground to thaw and dry enough for lifting stock there was 
an immediate and heavy demand for the inspection and certification of large 
quantities of plant material to be moved to nonregulated territory. During the 
February and March lull in nursery and greenhouse inspection, a number of 
inspectors assisted in transit-inspection work. These men were stationed in New 
Haven, Conn., Alexandria, Va., Washington, D. C, New York City, Philadelphia, 
and Pittsburgh. Replacements of winter-killed stock materially* stimulated the 
1934 spring nursery trade. Stocks of stored, dormant roses were early exhausted. 
Volumes of sales increased over 1933, resulting in greater demands for inspection 
and certification. Although the movement of nursery stock was necessarily 
delayed early in 1934, the spring shipping season was in some sections prolonged 
until late in May, an unusually late date for such stock to be moved. 
A Japanese beetle shipper's guide, containing a digest of the regulations and a 
list of all cities and towns within the regulated zones, was again prepared and 
forwarded during December to the approximately lo, 000 shippers and agents of 
common carriers on the Bureau's mailing list. 
Joint-certificate stamps which may be used to certify products under the 
Japanese beetle and/or gypsy moth quarantines were issued to inspectors early in 
January. 
Carload fumigation of sand and soil has been considerably simplified by the 
use of an injector constructed by the treating division of the project. By means 
of this device, the correct dosage of carbon diswlphide is quickly drawn into a 
tube by suction. The injector is then pushed into the Boil or -and to the required 
depth and the liquid discharged. 
Analyses of soil samples from 413 nursery plots, 271 coldframes. and 17 heeling- 
in areas were completed by the Technological Division in May. These 701 
treated units are scattered "throughout IS nurseries in New York and Pennsyl- 
