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FLANT QUARANTINE AND CONTROL ADMINISTRATION 
Notes abstracted from "News Letter" for August, 1931. 
(No. 9, Issued September 1, 1931.) 
Not for publication 
GIPSY MOTH ( Porthetria dispar L.) 
There was less defoliation caused by the gipsy moth this summer 
than for several years, and the trees in most of the area were practi- 
cally free from gipsy moth feeding. Defoliation was severe in the 
counties of Bristol, Plymouth, and Barnstable, Mass. There was recorded 
a total of 204,720 acres in New England which showed some feeding by the 
gipsy moth caterpillars, but over one-half of this was classified as 
less than 10 per cent defoliated, leaving 101,583 acres classified as 
from 10 to 100 per cent defoliated, and over one-half of this amount 
(54,710 acres) was in the southeastern section of Massachusetts. 
Practically all of the defoliation records are now available; there may 
be a few scattered ones received later, so that these figures may have 
to be changed somewhat, but it is not expected that any material change 
in them will be necessary. 
In the part of the Barrier Zone in New York State which is cared 
for by the New York Conservation Department, scouting was carried on 
during July in the townships of Ancram, Austerlitz, Canaan, and Hillsdale, 
and apparently no infestations were discovered during the month. On 
Long Island the New York Conservation Department had 5 crews doing inten- 
sive scouting in North Hempstead Township. No indications of gipsy moth 
infestation were found as a result of this work. 
JAPANESE BEETLE (Po pillia japonica Newm.) 
Plight of the adult Japanese beetle in the market and waterfront 
districts of Philadelphia reached such proportions that, beginning 
July 10, it was necessary to curtail the period during which farm products 
could be inspected and certified for movement from the generally infested 
area. Plight of the Japanese beetles in the heavily infested areas of 
New Jersey and Pennsylvania was studied during June by plant pest control 
officials from several other States. In a number of the localities 
visited, damage to crops was found to be greater than in preceding seasons. 
The beetle flight was still in progress at the end of August. 
SMALLER BAMBOO SHOT-HOLE BORER ( Dinoderus minutus Fab.) 
A shipment of approximately 28 tons cf G-ynerium saggittatum , G> 
saftpharoidc s, and Arundo donax, imported at Philadelphia on July 28 for 
the purpose of testing machinery, was found to be very heavily infested, 
esT^ecially the Gynerium, with this bamboo borer. 
