BUREAU OF ENTOMOLOGY AND PLANT QUARANTINE 17 
other States in the regulated area reported nursery infestations as 
follows: Delaware, 8 establishments; Maryland, 72; New Jersey, 6; 
New York. 39; Ohio, 1; Pennsylvania, 26; Virginia, 27; and West 
Virginia, 2. A total of 5,562 beetles were found on the grounds of 
these 258 establishments. In addil ion, beetles totaling 673 were found 
within 500 feet of the grounds of 61 other establishments in the regu- 
lated area. 
Fewer nurseries were rescoutecl in 1938 than in 1937, when this prac- 
tice was inaugurated. In 1937, 67 establishments were rescouted; in 
1938, 7. Of the latter number, 3 were found uninfested and were again 
assigned to the preferred status. Infestations on the other 4 proper- 
ties were found to be limited to a portion of the nursery, giving these 
lishments at least a small area of preferred classification from 
which stock might be shipped without treatment. 
Nursery and i>-reenhouse scouting was completed during the third 
week in September. 
On September 23, 10 live Japanese beetles, feeding on grape foliage 
in Elmira, N. Y., were found by an inspector in the course of special 
checking to determine how late beetles might be found in that section. 
An inspector brought in a live male beetle on November 8, collected on 
zinnia at Rnmson, N. J. Another "last" beetle was found November 7 
on a rose growing in a yard in Swarthmore, Pa. 
Throughout most of the Japanese beetle regulated area large quan- 
tities of nursery products moved under certification for many of the 
quarantined States. Forty-two carloads of certified stock were 
shipped from New Jersey in March. 
A number of temporary inspectors were added to the field force 
during March to take care of an increased demand for Japanese beetle 
inspection and certification of nursery and greenhouse stock. Five 
were employed to examine nursery stock shipped from the Newport, 
R. I., and Manchester, Conn., districts. With the arrival of Memorial 
Day the greater part of the spring nursery-inspection work was com- 
pleted in the New England area. Only 1 of the 13 temporary inspec- 
tors employed in this work was retained after May 31. Throughout 
the area more shipments and a larger quantity of plants were presented 
for inspection and certification than for several years. 
Numerous tests of methyl bromide as a fumigant for potted plants 
were conducted at commercial establishments during the winter of 
1938-39. The tests were highly successful. As a result, methyl bro- 
mide fumigation was authorized, effective February 15, for potted 
plants, plants in tubs, or balled nursery stock with soil masses up to 
8 inches in diameter. This new procedure is a decided boon to nursery- 
men. Itis cheaper than either the carbon disulfide emulsion or paradi- 
chlorobenzene treatment. Nurserymen enthusiastically welcomed the 
new procedure as a simplification of fumigation methods for plants 
accompanied by soil. 
A revised edition of the Shipper's Guide, enlarged to contain the 
cities and towns added to the regulated area with the revision of 
the regulations effective February 20, 1939, was distributed during 
the first part of May. 
A total of 909 soil samples was collected from 99.96 acres of nur- 
sery plots, heeling-in areas, anel frames treated with lead arsenate. 
188590 — 40—2 
