96 BUREAU OF ENTOMOLOGY AND PLANT QUARANTINE [Oct.-Dec. 
of fcfiig season's work, were stored in municipal and county-owned buildings 
from which they may be readily distributed to adjacent territory next season. 
Curtailment of funds allowed the operation of only 31,000 of the project's supply 
of 56,000 traps. 
Tlie St. Louis infestation is now known to have existed since 1932, but the 
section involved was not surveyed because the presence of the insect in the 
city was not reported to this Bureau until early in 1934. Approximately 
2,GU0 traps were concentrated in all likely infested sections from June 19 to 
August 25 of this year, with the resulting capture of 1,351 beetles. Funds 
recently made available by executive order have enabled ihe Bureau to start 
immediate application of thorough control measures in all infested sections 
of St. Louis. This work was begun on September 26 and is still in progress. 
Approximately 250 tons of lead arsenate are available for treating all of the 
117 infested blocks at the rate of 1,000 pounds per acre. This is the largest 
control program ever undertaken at an isolated infestation. Laborers to assist 
in applying the spray are being supplied by the local relief administration. 
The city fire department is assisting through ihe loan of hose lines. State and 
city officials are actively cooperating with the Bureau in this control work. 
Scouting of nursery and greenhouse establishments within a 10-mile radius of 
St. Louis gave negative results. A S^ate quarantine on the movement of host 
material from infested sections will also be enforced. 
It is also anticipated that lead arsenate will be applied to the limited sections 
found infested in Indianapolis, Ind., and in Charlottesville, Va. 
When beetles were first found in Erie, Pa., in the summer of 1931, 170 
specimens were collected. Following the capture of 282 beetles in 1932, all 
infested sections were given heavy applications of arsenate of lead to render 
the soil toxic to the beetle in the larval stage. In 1933, 167 beetles were caught 
in the city, but only 10 were found in the previously ni'ested blocks. In a 
single b ock where 200 beetles had been captured the previous year, only 6 
specimens were caught. As new infestations were determined outside the 
treated sections, additional poison was applied. This summer, with a still 
larger concentration of traps, only 114 bee les were captured. Forty-three 
of this total were survivors of infestations discovered in 1933 and first treated 
in the fall of that year. The remainder represents spread not previously 
determined. The significant feature of the control work in Erie is that inten- 
sive trapping in the older infested section of over 44 acres, where the soil 
has been poisoned for a period of 2 or more years, has disclosed only 3 beetles 
emerging from the entire area. This a] parently progressive reduction in 
beetle population in a residential district affording favorable environment for 
rapid mul iplication of the pest and difficult conditions for thoroughly treating 
every square foot of soil in which the insect might overwinter, is very 
encouraging from a control standpoint. Continuing the intensive eradica- 
tion measures of previous years in Erie, the sections surrounding infestations 
found this year in unpoisoned areas were treated with lead arsenate at the 
rate of 1,00 ) pounds per acre. This treatment, involving the application of the 
soil insecticide to 6.6 acres, was accomplished between September 10 and 17, 
immediately after the traps were lifted for the season. 
Although Waterville, Maine, was included within the regulated zone in an 
extension of territory, effective as a result of the spread determined in 1933, 
trapping was repeated there again this year to learn whether the past winter's 
record-breaking subzero weather had killed off the overwintering grub popula- 
tion. Instead of 204 traps being operated for 30 days, as in 1933, this year 300 
traps were operated for 40 days ; and, whereas last year 139 beetles wore 
trapped, this year's capture increased to 299. Apparently the soil temperature 
at a depth oi 6 inches or more did not decline sufficiently to affect larval 
survival. 
Under a campaign initiated by the New Jersey State Board of Agriculture, 
510 large-sized Japanese beetle traps were sold to individuals thr< uaiiout the 
State and to other purchasers in Norfolk and Richmond, Va., West Grove and 
Allen town, Pa., Bronxville, N. Y., and Stamford, Conn. The type of trap sold 
was one not available through commercial channels. By disposing of them at 
cost, the committee was able to retail the traps at $1.50 each. 
Dense flight of the beetle in heavily infested sections occurred this year 
approximately 10 days to 2 weeks in advance of the insect's customary maxi- 
mum appearance. By July 4, in densely infested sections of southern New 
Jersey, beetles had balled on early apples, and browning of the foliage of badly 
