Scout for
NEWARK, DEL. - Black
cutworms don’t attack field corn
every year on Delmarva, but when
this insect does occur, it can
quickly cause economic damage.
Research has shown that only one
cutworm feeding in every 3 feet of
com row produces an average
yield loss of 45 bushels an acre. So
it’s important to find and control
the pest early.
According to University of
Delaware extension pest
management specialist Joanne
Whalen, cutworms could be a
problem this year in some fields
because cool, wet spring weather
delayed tillage and planting,
allowing development of dense
weed covers that are very at
tractive to them. In addition,
pheromone and blacklight trap
catches of adults are up from last
season, indicating higher
populations. Adult moths started to
emerge in late March and laid
their eggs in areas with dense
weed growth and high soil
moisture.
5 mMLSMI
ar?*-—.
It’s too good to be true but it is!
Right now, you can buy new MF tractors
or any new Mb' combine and get special
low-rate financing from Massey:
7.9% APR* fixed-rate financing
on MF combines
9.9% APR fixed-rate financing on
MF tractors
Or, if you prefer, choose a waiver
of finance charges instead:
September 1, 1984 on grain
combines
SPECIAL LOW-RATE FINANCING
ON MOST NEW MF TRACTORS
AND COMBINES.
ABRACZINSKA’S FARM EQUIP. INC.
ROI, Catawissa, PA
Ph: (717)356-2323
(South on Rt. 42)
R.W. KELLER SALES
Perkasie, PA 18944
Ph: (215) 257-0101
M. M. WEAVER & SON
N. Groffdale Rd.
Leola, PA 17540
Ph: (717)656-2321
Black Cutworms now
In general, says Whalen,
growers are most likely to find
cutworm outbreaks under the
following field conditions: (1)
when no-till corn is planted into
com and soybean stubble, (2)
when fields are poorly drained, (3)
when fields are planted later in the
spring, or (4) when broadleaf weed
growth (especially duckweed) is
present prior to spring tillage or
planting.
How much damage occurs in
such fields will depend on the size
of the larvae and the com plants.
Young cutworm larvae feed on
weeds and com leaves until they’re
about half an inch long. Older
larvae feed at or below the soil
surface, causing cut or wilted
plants. Fields with high cutworm
populations are most vulnerable to
damage and yield loss during the
period from plant emergence
through the first-leaf stage. A
single cutworm can cut up to five
plants during its lifetime.
Since egg laying occurs over a
long period, Whalen advises
ASSEY-FERGUSO
MARLIN W.SCHREFFLER
Pitman, PA
Ph: (717)648-1120
ARNETT’S GARAGE
Rt. 9 Box 125
Hagerstown, MD
Ph: (301) 733-0515
S.G. LEWIS AND SON
West Grove, PA
Ph: (215)869-9440
869-2214
MP
Massey Ferguson
growers to scout untreated fields
as well as fields treated with a
preplant or at-planting insecticide
for signs of cutworm activity. Stall
looking for leaf feeding and cut
plants on a weekly basis as soon as
plants emerge and continue to
scout until the four-leaf stage.
Sample more often if there is
feeding injury and cutworm
populations approach a threshold
level. Be sure to dig around the
base of the plants for live larvae.
Base treatment decisions on a
random sample of 20 consecutive
plants in five locations throughout
a field.
“In general,” says the specialist,
“we recommend an insecticide
treatment on corn in the one- to
two-leaf stage when 3 percent or
more of the plants are cut and you
find two or more larvae per 100
December 1, 1984 on com and
bean combines
October 1, 1984 on most
MF tractors
No matter which financing option you
choose, you can save even more. We
have big Massey factory allowances to
work with, too.
This is a limited time offer. So don’t
wait! See us for full details.
N.H. FUCKER & SONS, INC.
Maxatawny, PA
Ph:)2ls) 683-7252
WEB SNYDER INC.
RDI
Watsontown, PA 17777
Ph: (717)538-5555
LEBANON VALLEY IMPLEMENT CO.
700 E. Linden St.
Richland, PA
Ph: (717)866-7518
*Annual Percentage Kate
financing subject to qualif\mg down pavment
and qualifying credit
plants. For a more precise control
decision, take into account the size
of the larvae before applying a
rescue treatment.”
Larvae ranging from %-inch to
1V« inches in length will continue to
feed for approximately 10 to 14
days. By the time they reach y*
inch in size, they can cut many
plants. Cutworms over IVi inches
long are almost through feeding,
and also harder to kill, Whalen
says, so there's no point in treating
for them.
T "rsbac. 4E, °vHrin 2.4 EC, Sevin
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TWO CONVENIENT LOCATIONS:
1755 W Mam St 1515 East Chocolate Ave.
Ephrata, PA 17522 Hershey, PA 17033
Located on Route 322 Phone (717) 533-4060
.Ph0ne(717)738-1131
Lancaster Farming, Saturday, June 9,1984—D23
5% Bait or Toxaphene can be used
as rescue treatments, she says.
But Toxaphene doesn’t con
sistently control larvae longer than
half an inch. Any rescue treatment
is less effective when the top 1 to 2
inches pf soil are dry because
cutworms will then feed primarily
below the soil surface.
Delaware residents who want
further information on in-season
pest activity can call the
University of Delaware’s crop pest
hotline, 1-800-345-7544.
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