There was a lot of speculation on cide spray may not make beans after to increase by only one day for every
E
switching corn acres to beans this spring. beans the best on the farm, but it may three days of delayed planting. The real
ricAndErson, cPAg
Ultimately there was more talk and less prevent significant yield loss. benefit is that you maintain the potential
gArstArEAAgronomist
action, but for the 2009 beans planted Planting date for many soybean fields for good yields with late-season rains.
into 2008 bean residue, we can expect is rather late in general. As planting Switching to early beans means that they
A
lower overall yields. This has been gen- dates moved later, you either stayed with will mature early, but won’t have much
U
G
PD
R
A
O
T
N
E
OMY erally attributed to more disease pres- your original plan or shifted to a slightly
chance for yield.
sure. Scout for foliar diseases such as fuller season bean, right? Because you There is still room for optimism with
Septoria brown spot and frogeye leaf know that switching to early maturing the 2009 corn crop. Both early planting
spot. Bean leaf beetles may also be more for late planting tends to reduce yield. and uniform emergence are factors in
prevalent. The use of a fungicide/insecti- Normal maturity beans planted late tend high yields. I see many later planted
fields with very uniform stands due to
emergence under warm, moist condi-
tions. I have seen later planted corn out
yield early planted corn before. Let’s
hope we see the benefits of uniform
emergence in 2009.
Small corn and big rootworms are a
concern. Soil applied insecticides have
been known to “fail” with early planting
dates where the insecticide “runs out”
before rootworm hatch. Rootworm
hybrids have a different concern.
Rootworm larvae can hatch and grow on
grass weed root systems until they reach
their second instar. If those weeds are
then killed by herbicide, the larvae can
move to rootworm resistant corn roots,
survive and feed there. This is a concern
if you planted rootworm corn late and
have uncontrolled grass weeds. Scout.
If you switched to early corn
hybrids for better dry down, you can
expect lower yield. For some growers,
it’s a reasonable tradeoff this year.
Early hybrids can yield less for several
factors including, heat stress, shorter
grain fill, and disease issues. You can’t
fix everything, but if you have a good
stand and good growing conditions,
but the early corn is showing foliar dis-
ease problems, you may consider the
use of a foliar fungicide at silking in
order to protect the yield potential.
The later planting dates for corn mean
more overall disease risk. Silking
through black layer is the key time to
protect corn from foliar disease. Our corn
crop will be reaching this stage later in
the calendar year, meaning that diseases
such as gray leaf spot and northern corn
The PThe Peerrffeect t F Fiit it in Wheat in Wh heaattt..
leaf blight will have more time to infect
and spread up the plant. Scout corn
fields and consider the use of foliar
fungicides at silking to protect yield.
Plenty of lush green growth later in
the year may mean more yield loss
from opportunistic “worms” such as
our old standbys including European
cornborer, corn earworm and fall army-
worm. We also need to worry about
western bean cutworm, the new kid on
the block. The later planting won’t nec-
essarily make these insects more preva-
lent, but a later harvest may give them
more time to feed in the fall. If you are
concerned about yield and grain quali-
ty, pay attention to reports and scout
your fields in late summer.
With a mixture of early and late plant-
ing, later maturing, full-season beans,
and both early and full season corn, we
When it comes to choices, Beck’s puts it all together.
may have a complicated harvest. In such
a year it will be more beneficial than ever
Call 1-800-937-2325 or visit w
Atlanta, IN
to know which hybrids are best suited to
Beck’s, the “B” design and Discover
ww.beckshybrids
The Power are trademarks of Beck’
.com to learn more
s Superior Hybrids, Inc.
.
www.beckshybrids.com
standing for late harvest. Traits are great,
but they don’t make a hybrid bullet-
proof. Genetics still count. Check with
your seed supplier and plan accordingly.
20Crops • Ohio’s Country Journal • July 2009
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