24—Lancaster Farming. Saturday, March 4, 1972
10 Chester Co. 4-H Poster Winners Named
Three sisters, Jenny, Sandy and Becky Robinson, West
Grove, exhibited three of the ten best posters at the Chester
County 4-H Poster Contest recently at Downingtown.
USDA
Science is steadily working its
way toward the perfect chemical
spray—one that is harmless to
man and animals, does not
persist in the environment and
one that insects can not build up a
resistance to, according to the
USDA.
Laboratory tests with an ex
perimental insecticide,
designated SBP-1390, show the
compound to be the most potent
yet of insect sprays in the
pyrethroid class
Pyrethroids comprise a class of
compounds which are chemically
related to pyrethrum, a natural
insecticide found in some plants.
There is evidence this natural
insecticide was used by man 2,000
years ago.
Researchers at BeltsviUe, Md.,
using SBP-1390, have obtained
mortality rates approaching or
equaling 100 per cent with
aerosols against DDT resistant
house flies and Japanese beetles,
and with sprays against DDT
susceptible house flies and
German cockroaches. Sprays
also killed about 80 per cent of the
yellow fever mosquitoes.
For the first week after ap
plication as a residue, SBP-1390
killed crickets more effectively
than chlordane and took care of
German cockroaches better than
malatbion. It was also more
effective than malathion against
DDT resistant house flies and far
more effective than DDT against
face flies.
When tested in insecticidal
coils to repel northern house
mosquitoes, SBP-1390 was as
effective as pyrethrins.
Concentrations of the com
pound in water as low as .01 parts
per million caused 100 per cent
mortality of back swimmer
M; Neighbors
rM i;
-'l
“Seems our self-cleaning
oven started with our din-
Developing
Near-Perfect Spray?
larvae within one day. This in
dicates a favorable degree of
stability for the new spray in a
water medium, researchers said.
The chemical is still in the
developmental stage and is
neither registered nor recom
mended for the use tested in these
experiments. Before a pesticide
can be released to the public, it
must undergo stringent tests by
its manufacturer, who than
submits test data to the federal
government for evaluation and
registration.
A synthetic pyrethroid,
resmethrin, is registered and
commercially available. SBP
-1390 is an isomer of that com
pound.
New Beetle Lure
Another insect is also getting
some attention from resear
chers—the Japanese beetle which
has increased its numbers
substantially in the last few
years.
A potent new lure for Japanese
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Some 44 4-H’ers competed in
the Chester County 4-H poster
contest February 14 at the
Dowingtpwn United Methodist
Church.
What is 4-H? What does it do?
Who is it for? The answers to
these and other questions were
interpreted in poster form by the
4-H’ers.
The top 10 entries will be sent
on to state competition in March.
Entries made by Pam Taws,
Paoli, Carla Nafziger, Dale
Nafziger, Phoenixville RD;
Libby Ekdahl, West Chester RD;
Jenny Robinson, Becky Robin
son, Sandy Robinson, West
Grove; Joan Liesau, Spring City
RD; Allison Scheib, Phoenixville
RD, and a team of Bonnie Shaw,
Debbie Ferguson and Karen
Feguson, Downingtown RD, will
beetles is more than four times as
attractive as the standard lure.
Odor provides a means for the
beetles to find many of some 275
plants upon which they feed.
Powerful lures, more attractive
than odors fo their natural foods,
divert the beetles into traps
which serve as a survey tool. The
beetles may be destoryed in the
traps without use of insecticides.
In tests conducted by the U.S.
Agricultural Research Service,
at Beltsville, Md., the USDA
found that effective trapping of
Japanese beetles with at
tractants may ultimately offer a
control alternative to milky spore
disease, now used as a biological
control of the beetles.
The disease, induced by bac
teria, has met with considerable
success and is now spreading
naturally among Japanese
beetles. However, even where the
disease is well established, there
have been local and stOl not
understood upsurges of the in
sect, researchers say.
represent Chester County in state
competition.
Judges for the contest were
Joan Lucas, assistant Lancaster
County Extension home
economist, Judy Longenecker,
former Lancaster County 4-H’er
and Maria Jekowski, Delaware
County 4-H member.
Everything You Always Wanted To
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but this same volatility and leverage can
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* Now you con ask our experienced ac
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COMMODITY SEMINAR to be held at our
Lancaster office Wednesday/ March
15th at 7:30 P.M. For reservations, just
call '
MR. REED, at 397-R221
make reservation(s) for your
Commodity Seminar, March 15
Name
Address
City
Telephone
Reynolds Securities Inc.
MEMBERS NEW YORK STOCK EXCHANGE
AND OTHER LEADING EXCHANGES
61 NORTH DUKE ST, LANCASTER,PAJ 7601
Eats Everything
The loris, a tiny, slothlike
primate, crawling through
the trees, stalks its prey. It
eats insects, small rodents,
birds and lizards—swallow
ing everything, even bones
and feathers.
State