PIK fields may have problem
WAYNE, N.J. - Com fields
diverted in 1983 to the USDA PIK
(Payment in Kind) set-aside
program could harbor a serious
treat to 1984 com crops, a survey
by American Cyanamid Company
indicates.
Survey results from 112 fields in
nine midwestera states showed
significant numbers of corn
rootworm beetles and com flea
beetles. These insects will pose a
more-than-average threat to com
production in 1984.
The company’s technical service
group used sweep nets to check
PIK acreage in Illinois, Kansas,
Minnesota, lowa, Missouri,
Nebraska, North Dakota, Ohio and
Wisconsin. Most of the fields
yielded com rootworm adults and
com flea beetles, according to a
report on the survey by Mark
Atwood, Technical director,
Cyanamid Crop Protection
Chemicals Department.
Rootworm egg numbers could
not be determined, but the number
of adults found “indicates
significant egg laying might have
taken place,” Atwood reported.
Atwood says Purdue University
is advising fanners to use a soil
insecticide next year on set-aside
acres if rootworm beetles were
noted during August or September,
“regardless of what was grown
there in 1983.” Some of the
Cyanamid surveys were conducted
in September, after adult root
worm activity peaked, he said.
Atwood said that the surveys
were taken too late to find
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wireworms and white grub adults
still in the fields though they may
have been present there during the
early summer. Cutworms, found in
less than three percent of the
surveyed fields, were considered
insignificant in the study, he ad
ded.
When these same PIK fields
were swept with nets, abundant
flea beetle populations were found,
Atwood continued. In one Min
nesota field 60 sweeps of the net
captured 50 flea beetles. “Adults of
the species will overwinter in these
PIK fields, particularly in
southern regions of the com belt,
and may pose a more than average
threat in 1984,” Dr. Atwood said.
Cyanamid designed the survey
in part to learn what kinds of com
pests were present in PIK fields. In
most of the acreage surveyed, com
flea beetles were found, as were
Northern and Western com
rootworm beetles. Southern com
NEWTON —An all day program sylvania last year. Also on the
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vegetable specialist, who will
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grown in four locations in Penn-
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rootworms were not included in the
research, since they generally do
not overwinter in the midwest.
Survey results showed rootworm
beetles were most prevalent in
weedy, fallow fields and in small
grain cover crops, which together
compromise about one-third of the
acreage studied.
Com flea beetles were found
most frequently in weedy fallow
fields and in cover crops of
sorghum, sudangrass or sudex.
In spite of cool, wet conditions
and the late-season timing of
sweeps, enough adult insects
surviveid in some fields to be
considered a potential threat, Dr.
Atwood said.
In one weedy fallow field in
Goodhue County, Mn., 60 sweeps of
the net caught 350 northern root
worm and 50 com flea beetles, he
noted. Sixty net sweeps caught 77
Northern and Western rootworm
beetles in a Dane County, WI cover
crop of small grain.
Tomato meeting on Tuesday
Mac Nab will review the
results of using pocket computers
to time early blight sprays on
tomatoes.
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One of the most premising
alternate fuels for diesel engines is
vegetable oil, says James W.
Garthe, Penn State Extension
agricultural engineer.
Vegetable oils like soybean,
sunflower, peanut and com oil
have about 90 percent of the energy
of No. 2 diesel fuel and represent
renewable fuels. These renewable
resources could still be produced
during a petroleum shut-off or a
fossil fuel shortage.
When substituted for diesel fuel
in tractors, vegetable oils do
present some problems, however.
First, vegetable oils are about
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fifteen times thicker than diesel
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If you are going to use vegetable
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after processing and again before
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filter plugging, though. In some
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Coking, or cabon buildup, is
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Presently too complicated for
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