
Pay Die 
Experiments conducted by Mr. Fleming to determine the uniformity 
of distribution and the penetration of lead arsenate in uncultivated 
ground have been completed. He reports: "The application of lead ar- 
senate as a dust to the soil gave the most uniform distribution. The 
analysis showed that the upper inch in the dusted plot had a concentra-— 
tion of lead arsenate over the entire surface which was sufficient to 
destroy the larvae of the Japanese beetle. When the lead arsenate was 
applied as a spray, the analysis showed that there was a tendency of the 
arsenic to collect in the low spots. In some cases 50 per cent of the 
area treated by the liquid methcd did not have sufficient lead arsenate 
in the upper inch to assure the destructiou of the larvae. The lead ar- 
senate penetrated, however, a little deeper into the soil in general 
when applied as a liquid spray." 
The fairways of the Old Belleclaire Golf Club, Bayside, N. Y., 
which were infested last spring with Ochrosidia villosa Burm. in suffici- 
ent density to cause damage to the turf, were top-dressed with lead ar— 
senate. The larvae have been observed this fall to be feeding beneath the 
poisoned soil, apparently unharmed by the treatment. This condition was 
also observed last fall in a lawn near New Rochelle, N. Y. 
Reporting on investigations of control methods, Mr. Fleming writes: 
"In a cooperative experiment with * * * the New Jersey Experiment Station, 
approximately 1,500 eggs of the Japanese beetle were subjected to high- 
frequency waves. The frequency was varied from 1,000,000 to 5,000,000 
cycles per second and the field strength from 1,000 volts to 4,000 volts, 
per square inch. The eggs were kept under daily observation after treat— 
ment until the final effect could be determined. In no treatment did 
the high frequency waves prevent ali the eggs from hatching." 
What the Japanese beetle is doing in northern Japan (Hokkaido) is 
of interest. L.B. Parker reports: "This year, 19351, was the normal year 
for 'beetle abundance' of Popillia iaponica Newm. at Sapporo, due to the 
emergence of both the one-year and two-year cycle broods. According to 
the reports of entomologists of the Agricultural Experiment Station at 
Kotoni (near Sapporo) there was an unusual abundance of P. japonica this 
year, even for a year of beetle abundance. When the writer left Sapporo 
at the end of August the beetles were still quite abundant, though their 
feeding was confined almost entirely to their favorite focd plants, 
Polygonum cuspidatum (itadori). The percentage of parasitism by C. 
Ginerea at this time was very low indeed and appearance indicated that this 
parasite had completed its season's activity and that what few parasitized 
beetles were fovnd were the victims of a few tardy individual flies." 
Mr. Parker gives the following summary of the collecting, rearing, 
and shipping of Tiphia asericae Allen and Jaynes for 1931: 
Total number of females collected................ 1G, 20a 
Total number of ovipostions obtained.......... 65 , 804 
Serer UM eTs COCOONS: fOTMCO. 27. cc svinend asses 31,662, or 48.12 per cent 
Total number of healthy cocoons obtained 28,471, or 43.27 per cent 
