er. 
Of the two lowland trenches dug at this locality, one was at a 
Slightly higher level than the other and was characterized by a much 
lighter and more sandy suvuil. In this trench larvae were traced down 
to £5 inches, in the uther not below 20 inches. Both trenches com- 
binec yielded 32 larvae, of which 2 were Japanese beetle (not below 
7 inches), 17 Polyvhylla, 8 Ochrosidia, 5 Phyllophaga, and 1 unde- 
terminea. Polyvhylla larvae were found at depths vf 10 to 25 inches; 
Ochrosidia, from ncar the surface to 10 inches; and Phyllophaga, 
from 5 to £0 inches. The latter obviously represented a type dis- 
tinct from any of those found at Concordville. 
Repellents to prevent feeding by adult Jap beetles.--A report 
entitled "Field Tests Conducted During 1933 to Increase the Adhesive 
Power of Hydrated Lime When applied in Spray Form on Peach and Apple 
Foliage," by F. W. Metzger, was completed during the month. The sunm- 
mary of this repyort follows: "Boiled linseed oil at the rate of 1/2 
peund and hydrated lime at the rate of 20 pounds to 100 gallons of 
water remained slishtly longer on the foliave than did lime alone 
at the rate of 32 »vounds to 100 gallons of water. Five applications 
vf all combinations tested were necessery to protect foliage of 
Krummel and Iron Mountain varieties of peaches and Rome Beauty apovle. 
Five ayplications did not entirely prevent injury to the foliaze of 
star apple trees. This number of applications is too many for the 
average grower to make and it is quite probable that fewer would suf- 
fice during a sumer when the ‘rainfalt 
Increasing the effectiveness of lead arsenate as a stomach poi- 
son afainst the adult Jap beetle.--s report by F. w. Metzger entitled 
"Lead Arsenate Combined with Varicus attractive Sprays" was completed 
during the month. «A summary follows: "Syrline in combination with 
green or coated lead arsenate sorayed on apple foliage with a geraniol 
dispenser located in the tree vave the highest beetle mortality of 
all the poison-attractive combinations tested during the summer of 
1933. Syrline, however, can not be used on arple foliage at the rec- 
ommended rate without very serious injury after the first application. 
The vaporization of seranicl from a dispenser of the ty pe described 
is a much more satisfactory methed of employing the attractant than 
by applying it as a spray. Green lead arsenate applied with « cis enser 
is apvearmtly n. it_re attractive than cuatec leud arsenate when 
the satter is also used with a geraniol dispenser. Powdered lead 
arsenate with flour or fish oil as an adnesive can be substituted 
for the coated lead arsenate which, with a i 

geraniol dispenser, ap- 
pears to be the cheapest and most effective methcd of inducing 
beetles to feed on poisoned fuliage." 
