BUREAU OF PLANT QUARANTINE 13 
Laurel, Colgate, and near Elkton. These infestations are separated from the 
continuously infested sections centering about Philadelphia. Infestations in 
these localities approach conditions found in the densely infested sections farther 
north. Excellent coverage with coated lead arsenate of all foliage in the sprayed 
communities assured protection to vegetation, some of which during several years 
past has been subject to complete defoliation. Instead of adding geraniol and 
syroline to the spray mixture, as was done at Erie, Pa., during the summer of 1932, 
perforated metal cages each containing a small jar of geraniol-eugenol mixture, 
equipped with a wick for volatilizing the liquid, were hung in sprayed shrubs 
and trees of the species known to be preferred food plants of the insect. Beetles 
thus attracted to the poisoned foliage consume enough of the lead oleate-lead 
arsenate insecticide to receive a toxic dose. 
Beetle depopulating demonstrations were performed in Philadelphia, Pa., and 
Trenton, N.J., during the summer of 1932. In Philadelphia, the operation of 
472 traps for a period of 9 weeks on 6 poisoned plots planted to a preferred food 
piano of the insect resulted in catches of about 2,800 pounds of beetles. Main- 
tenance of 63 traps at Trenton during the season resulted in a total catch of over 
633,000 beetles. Despite the quantities of beetles collected in connection with 
these demonstrations, the number of the insects in the immediate vicinity of the 
traps was not greatly depleted. 
Large-scale trapping activities iniciated during July and August by the State 
of New Jersey in the densely infested sections of Salem County, in southern New 
Jersey, resulted in the collection in 2,100 traps of over 500 millions, or 55 tons, 
of beetles. 
An improved method of baiting the traps was adopted, liquid bait, containing 
geraniol and eugenol, being substituted for the bran bait mixture formerly used. 
Small jars equipped with wicks are used to vaporize the oils. The advantages 
accruing from the use of the liquid bait are reduction in time required to prepare 
the bait, reduced bulk and weight, and consequent lower haulage costs in moving 
large quantities of trap equipment for long distances. 
ROAD STATIONS 
Border patrol stations, established during the previous April, were already in 
operation on 18 highways at the beginning of the fiscal year. These vehicular- 
inspection stations were concentrated on the highways leading from the regulated 
sections of Pennsylvania, Maryland, and Virginia. Highways chosen for the 
road-inspection work were the mainly traveled routes from heavily infested zones 
to points west and south. Thirteen of the stations were continued until fall. 
Five other stations were closed and reopened as the seasonal movement of quaran- 
tined articles justified. Road-inspection work was discontinued for 1932 with 
the closing between November 9 and 26 of the 17 stations then in operation. 
The 1933 border-patrol activities began with the reestablishment of stations in 
Maryland and Virginia late in March. Reorganization of the work in Pennsyl- 
vania and New York followed as rapidly as inspectors could be instructed in 
their duties. At the close of the fiscal year 25 established road-inspection sta- 
tions were located at the borders of the regulated territory in Virginia, Maryland, 
and along the Pennsylvania- West Virginia and Pennsylvania-Ohio State lines. 
A roving patrol of 4 Pennsylvania State inspectors covers 8 roads leading into 
the nonregulated section of northwestern Pennsylvania. Another Pennsylvania 
inspector maintains an established post. Road-inspection work was revived in 
New York State with the establishment in mid-April of a mobile patrol of four 
State-employed inspectors who alternate their hours between 10 highways over 
which most of the quarantined articles move west from the regulated portion o( 
northern New York. 
Stations in operation during the fiscal year stopped 1,349,323 road vehicle.-. 
1 r > 7 2 l . > of which were found to be carrying contraband material. Among the 
materia] removed from the contraband surrendered at the road stations 
were 253 grubs and adults of the Japanese beetle. 
OKUTIFICATION AM) TREATMENT OF NUBSBBI STOCK 
Under :i rc\ ised interpret at ion of the nursery classification regulations, elTecth e 
in October, class 111 Btatus is now confined exclusively to establishments on 
which beetles or grubs have been found, or establishments quite definitely de- 
termined as in a generally infested section and within 600 feet of which beetles 
have been collected. Under thii Interpretation of the regulations 68 nurseries 
which had been given a class III >taiu- were reassigned to class 1. ami thereb) 
