BUREAU OF ENTOMOLOGY AXD PLANT QUARANTINE 19 
Missouri and Indiana intrastate quarantines embracing actually infested blocks 
supplemented the treating activities in St. Louis and Indianapolis. 
Some of the States in which remote, apparently established infestations were 
disclosed selected quarantine action in lieu of soil treatment. Intrastate quar- 
antines were accordingly issued by Illinois and North Carolina. The quaran- 
tined zone in Illinois circumscribes the actually infested blocks in Chicago. 
The North Carolina regulations are applicable to three separate areas sur- 
rounding, respectively, Winston-Salem, Spencer and Salisbury, and Greensboro. 
A similar intrastate quarantine was prepared by Ohio agricultural officials to 
place under regulation Cleveland, Columbus, Canton and its suburb Hills and 
Dales, Marietta, Steubenville, and Youngstown. In some instances quarantine 
action was preferable, since the 1935 trapping was not extensive enough to 
delimit the infestation in certain localities. Trapping over a wider area will be 
necessary in order to determine the scope of the indefinite infestations and the 
practicability of soil treatment to suppress the larval population. . 
HIGHWAY INSPECTION SERVICE 
With trafficking in quarantined products at a peak during July, road-patrol 
activities were at their maximum during that month. Twenty-nine posts that 
had been in operation since April and May of the previous year w^ere supple- 
mented in July by six added stations in Virginia and along the Pennsylvania- 
Ohio line. When fall movement of nursery stock was at its height, 64 road 
inspectors were required for effective operation of the posts. 
On July 1 eight New York State inspectors were instructed in quarantine-line 
operation and six of them were assigned to three permanent stations, operating 
16 hours a day, at Corning, Elbridge, and Lake George. Two roving inspectors 
with cars were assigned to patrol roads not covered by regular posts in the 
stretch from Cortland to Johnstown. These posts were continued until 
September 14. 
Closing of the regular stations began late in September, and gradual abandon- 
ment of the posts continued during October and November. By the end of 
November the only remaining stations were those on United States routes 1 
and 17, south of Fredericksburg, Va. Inasmuch as a small volume of nursery 
and greenhouse material continued to move southward even during the 
severe weather, two inspectors were kept at each of these posts and the stations 
operated 16 hours per day throughout the winter. During the freezing weather 
of January and February, 70 interceptions of contraband material were made at 
these stations. This is the first season that year-round stations have been oper- 
ated on the boundary of the regulated territory. 
Expansion of the road-patrol activities in the spring of 1936 began with 
the addition, on March 25 and 26, of five road stations to handle southbound 
traffic from the enlarged Virginia regulated zone. Destruction of the bridges 
over the Potomac River at Harpers Ferry and Shepherdstowu, W. Va., by the 
March flood eliminated two exit highways that previously had required guard- 
ing. Realinement of the Virginia area added one additional highway to the 
number of posts previously patrolled in that State. Establishment of posts <>n 
the West Virginia-Maryland and Pennsylvania-West Virginia-Ohio State liars 
began on April 2. Fourteen posts were set up between April 2 and 29, most of 
them with one inspector each, operating 8 hours per day. 
Posting of the most important highways was concluded early in May with 
the addition of two stations in Virginia and the assignment of Pennsylvania 
State inspectors to guard four highways on the Pennsylvania intrastate 
boundary. When the seasonal restrictions on frnits and vegetables became 
operative on Jnne 15, two additional stations in Virginia and one in West 
Virginia were opened. Inspection personnel was increased during Jnne and 
full quotas of men were assigned to the posts by June 30. 
At the end of the year there were in operation :U road stations, 12 of which 
were in Virginia. 5 in West Virginia. 5 on the Pennsylvania State line, and !> 
in northwestern Pennsylvania. A maximum of 41 inspectors were engaged in 
road inspection during the spring season. 
Trucks returning empty to southern points after driving through sections in 
which the beetles were swarming were frequently found to contain Large 
numbers of adults. Among the empty trucks cleaned during July and August, 
f>9 were infested with a total of 2.223 adults, approximately one-third of which 
were sufficiently vigorous to survive until the arrival of the trucks at destina- 
