A36—Lancaster Farming, Saturday, July 25,1981
State entomologist seeks gypsy moth control in U.S.S.R.
HARRISBURG - A Penn
sylvania Department of En
vironmental Resources en
tomologist is back from the Soviet
Union with more than 200 parasites
to prey on the gypsy moth
Mark Ticehurst, a DER en
tomologist serving 10 counties in
central Pennsylvania, spent more
than three weeks in the Soviet
Union working with scientists from
the Ukraman Forestry Research
Institute, in the vicinity of Kharkov
and Kherson
Accompanied by three U S
Forest Service entomologists,
Ticehurst made the trip as part of
a US/USSR Science Technology
agreement to jointly evaluate
integrated forest pest
Broiler placements up
HARRISBURG Placements of
broiler chicks m the Com
monwealth during the week endmg
July 11 were 2,338,000, according to
the Pennsylvania Crop Reporting
Service
The placements were eight
percent above the corresponding
week a year earlier and slightly
above the previous week. Average
placements during the past nine
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management techniques in use
against defoliating insects such as
the gypsy moth and the oak leaf
roller
“The gypsy moth problem in the
Soviet Union doesn’t appear to be
as serious as it is here in the United
States,” said Ticehurst. “This is
probably because the Soviet Union
has more parasites to prey on the
gypsy moth.”
“Parasites are the primary
agents for gypsy moth control in
that country and they offer a
potential for more widespread
control here at home,” he ex
plained “I brought back 230
specimens, several of which still
are at the U S Department of
Agriculture’s Beneficial Insect
weeks were two percent above a
yearago
Placements in the 19 key poultry
producing states were 81,807,000,
one percent below the previous
week but seven percent above the
same week a year earlier
Broiler-fryers slaughtered in
Pennsylvania under federal in
spection during the week ending
July 1 totaled 2,167,000.
Research in Newark,
Del , to determine how en
vironmentally safe they are to use
and to make sure they are not
hyper-parasites, that is, parasites
that will parasitize other
parasites ”
Ticehurst added “Some already
have been cleared by the research
lab and transported to DER’s
Forest Pest Management lab at
Middletown for study and possible
release. Others, still in quarantine
at the Delaware facility, may be
there until next spring.”
Ticehurst, who was ac
companied by an interpreter
during his visit to Russia, said the
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Soviets also are using chemical
sprays in an effort to combat the
gypsy moth and, at the same time
have tried increasing predation by
birds
To do this, he explained, the
Russians construct nesting boxes
for the birds He said they may
locate about 10 boxes per acre to
attract as many birds as possible
to the area. But, he added, this
practice is not necessarily
recommended here especially
since the bird species in Russia
differ from those found in this
country
During his stay in Russia,
Ticehurst found the Soviet
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scientists extremely cooperative
but pointed out there was little, if
any, free time allowed to just
wander around. Practically every
moment was accounted for, he
said
He said the U.S. delegation
described current research and
application technology, including
work at the Forest Pest
Management lab at Middletown to
reduce the rate of insecticides
used, based on mortality from
natural enemies. This work is in
the experimental stage but has
displayed the potential for
economic and environmental
control for the gypsy moth.
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