Owen Taylor, Editor
Stink bugs are being treated in
some corn in south Georgia.
Southwestern corn borers are
turning up in more locations in the Midsouth. None of our contacts this
week reported finding treatable levels, but that’s not to say some
aren’t out there.
Worms are building in soybeans,
mainly in Arkansas and Mississippi. Based on defoliation
thresholds, treatments are called for in scattered locations. See
comments by Gus Lorenz and Angus Catchot.
Soybean rust has flared in kudzu in
Florida but hasn’t turned up in soybean sentinel plots. See comments
from David Wright.
Lack of rain continues to delay soybean
planting in portions of the upper Delta. More than one of our contacts
this week talked about the mixed results farmers are having with
watering up beans to a stand, irrigating young beans in dry soil or
pre-irrigating ahead of planting. Thin, skippy stands in many cases will
Northern corn leaf blight treatments
continue in the lower South from Louisiana to Georgia.
Several of our contacts mentioned finding common rust, which doesn’t
trigger any real panic this early. See our Links section for an
overview on common rust posted by Tom Allen, Mississippi Extension
Kudzu bugs already are appearing in
soybean fields in both North Carolina and South Carolina.
See reports from Jeremy Greene and Dominic Reisig, plus related
content in our Links section.
False chinch bugs have been hitting
cotton in West Tennessee and pose a potential threat to soybeans.
See our Links section for an advisory from Scott Stewart, Tennessee
Extension IPM Specialist.
Wheat harvest is starting in more
places, and several of our contacts said it's the earliest anybody in
their areas can remember the combines running.
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Don Respess, Extension Agent, Coahoma
and Quitman Counties, Mississippi: “Corn and beans are off to a
great start. But it’s dry. People are watering corn wherever possible. I
had a meeting in Cleveland on Tuesday (5/15) and saw combines in the
field cutting wheat on the way back. A farmer in Quitman County cut a
sample last week, and it was 15%, so he’ll be cutting this week.”
Dominic Reisig, NCSU Extension
Specialist, Entomology, Plymouth, North Carolina: “At a field day
last week a farmer in Pamlico County swore that he saw a kudzu bug on a
volunteer soybean plant. This week he sent me a photo that showed kudzu
bugs crawling all over the plant, with eggs on it, too. Since then we’ve
a report of kudzu bugs in a planted field of soybeans. We had kind
of been thinking they wouldn't show up on planted soybeans early.
Obviously, that's not the case."
Larry Walker, Walker Cotton Technical
Services, Flintville, Tennessee: “Wheat is drying down, and I think
we’ll be in the fields around May 28, which is the earliest anybody
along the Alabama-Tennessee line can remember wheat harvest
starting. We’re trying to estimate whether this is a good or an average
crop. It only rained three-quarters of an inch across much of our area
in April. The historic average is 5 inches, so that could be a factor.”
Sam Atwell, Agronomy Specialist,
University of Missouri, New Madrid, Missouri: “Wheat has really
dried down fast, and we could be cutting some next week. It’s normally
June 15 when we start here, so that puts us 3 weeks early as things look
right now (5/15).
“We started irrigating crops early due to
dry conditions, and we even irrigated wheat. The guys in Kentucky who
push for high wheat yields had us irrigating 3 to 4 weeks ago. Corn was
planted early into moisture, plus we had some rain early, so most of it
was big enough that we could water fields when it did get too dry.
Soybeans have varied. About 50% of the beans planted on a normal
schedule – late April and the first of May – got caught by dry
conditions, and we’re seeing some skippy and incomplete stands that in
many cases will be replanted.
“In places, people planted into dusty soil
and irrigated to try to get a stand. A lot of folks also irrigated dry
soils to try to build up moisture, then knocked the tops off and
planted. That’s got its own set of problems. Irrigation will never be as
uniform as a good rain. Plus, when the soils get to the point you can
get in the field and knock the top off, it dries out so fast that you
may not catch the moisture. I don’t anticipate any real serious problems
right now except in dryland fields. Some of those soybeans already are
Zach Ingrum, Field Rep, Jimmy Sanders,
Athens, Alabama: “Our corn really benefited from the 1 to 4.5 inches
of rain that we got over the weekend. Our earliest corn is just starting
to tassel. We’re just finishing some post herbicide applications. Early
soybeans are coming up good, and we’re making Roundup sprays. Herbicides
are going out. Some wheat may be cut this Saturday or maybe next Monday
if the weather holds up.”
Skip Scarbrough, Farmer Supply,
Marvell, Arkansas: “We’ve had reports of some corn already tasseling
in Lee County where they planted earlier. We’re still about 10 days out
from tassels in this immediate area. At this point we’re getting ready
for Afla-Guard applications. Corn looks excellent and isn’t holding
back. At this rate, we could start cutting some by the end of July.
“Soybean planting has pretty much been
completed up to the acres behind wheat south of Highway 79. Above
Highway 79, they really don’t start planting beans until rice planting
finishes. But up that way they’re still wet from rain last Monday (5/7).
It rained from 1.5 to 6 inches across a big part of our service area.
“People have started bringing wheat
samples to our 2 grain elevators, and they’re running 16% to 19%
moisture (as of 5/15). We could see some cutting start at the end of
this week, which would be 3 to 4 weeks earlier than normal.”
Angus Catchot, Mississippi Extension
Entomologist: "We’re dealing with 5 or 6 different species of
caterpillar pests in soybeans. The assortment includes yellow striped
armyworms, bollworms, garden webworms, granulate cutworms and green
cloverworms, among others.
“In place, defoliation is approaching 40%.
Our threshold on non-reproducing beans is 35%. In Arkansas, it’s 40%.
The smaller the bean plants, the more defoliation they can take. We have
confidence in our threshold and believe that you won’t lose money at
defoliation up to 35%, but the threshold is in place so that you’ll
treat before you do start losing money. If you’ve got defoliation at
lower levels, you don’t need to get super alarmed. This isn’t anything
we haven’t seen in the last couple of years, although we may be finding
a little more of it this year.”
Rome Ethredge, Seminole County,
Georgia, Extension Coordinator: “Wheat harvest is going on right now
(5/14), and yields look moderate on this first part of the crop. I’m
expecting that averages will pick up a little as we move deeper into
harvest. Corn is silking, 8 feet tall and developing small ears. It
looks excellent. We’re now looking for Southern rust, our main disease
problem in corn. Some people are spraying fungicides for Northern corn
leaf blight where they feel it’s needed. This is the earliest it’s ever
been found here. We’re seeing stink bugs, and a few fields have just
Ty Edwards, Edwards Ag Consulting, LLC,
Water Valley, Miss.: "I’ve seen a few corn borers but not enough to
treat yet. We still have a few hundred acres of soybeans left to plant
where that part of the crop was put on the back burner while people took
care of other things. We’re into weed control in all of them.”
Travis Vallee, Cenla Ag Services,
Pineville, Louisiana: “We're taking care of weeds in beans. No
insect issues (as of 5/15). Our oldest are probably at third trifoliate.
I treated some corn this past week for Northern corn leaf blight. We
missed a critical rain last week on corn, but it’s still better off than
it was at this point last year. Wheat is cutting in the 50s (bu/acre).”
Trent LaMastus, Ind. Consultant,
Cleveland, Mississippi: “I found a couple of Southwestern corn
borers boring into the stalk this morning (5/14). What we’re finding is
less than 5%. We started hearing reports about them 10 days ago and have
been digging and digging but have only found a handful. Corn ranges from
V8 to tassel. We found some armyworms in corn last week, which raised a
little concern. They were bad in places and congregated enough to cause
some damage but were otherwise scattered out across the field.
“Beans range from still in the bag to some
at V7. Some of the earliest are setting pods. I’ve seen a few combines
running in the wheat. One client started last week, then got rain. No
word on yields.”
John Kruse, Louisiana Extension
Cotton/Corn Specialist: “We got rain over the weekend (5/12-13), so
people were able to suspend a lot of irrigation. Corn is definitely
tasseling in more areas, and it’s amazing to see how well the early corn
crop is coming along. Growers seemed to have gotten irrigation going in
a timely manner when it was dry.
“Some Northern corn leaf blight has turned
up. It’s not universal, just patches and pockets in Rapides Parish, on
Macon Ridge and in the Mississippi River alluvial soils. Some people
sprayed corn fungicides on a preventive basis. The reasoning, I think,
is that they booked corn at higher dollar amounts, they have a crop to
protect and have more money to spend on it. That’s not to say there
haven’t been cases where treatments were advisable. In Rapides Parish it
already had reached the ear leaf.”
Gus Lorenz, Arkansas Extension IPM
Specialist: “We’re still finding this complex of worms in soybeans
in parts of the state. I walked into a field at Marianna last Friday
(5/11) and picked up 4 species within 50 yards of my pickup. The mix
included garden webworms, yellow striped armyworms, bollworms and fall
armyworms. In places, painted lady caterpillars are present, too.
“We’re finding various worms at 2 to 4 per
row foot, with higher counts in spots. Those worms were a quarter to
half grown last week. If we don’t get some parasitism or predation this
week, they’re going to be a real problem. This pressure hasn’t developed
in every field, but concentrations are present in places in north and
south Arkansas and into the Arkansas River Valley.
“We found high trap counts of bollworms
last week, and some of those went to corn to deposit eggs, but a lot
went to seedling soybeans with those other species in the mix, and we
can see defoliation starting in places. When you go into our corn plots
– especially non-Bt refuge corn – plants are covered up with falls and
John Burleson, Consultant, Swan
Quarter, North Carolina: "Most of our corn is around V5, and guys
are making their first post herbicide applications. It looks pretty
good. A few beans have gone in, but most of mine will follow wheat.
We’ll see wheat harvest start in about 2 weeks on lighter soils. That’s
somewhat early. But if we get a lot of rain it may not be ready any
earlier than normal.”
Dewey Lee, Georgia Extension Grain
Specialist: “Widely scattered thunderstorms have allowed us to
reduce irrigation in places. Growers continue to irrigate where we
haven’t had rain. Yield potential looks as good as any year we’ve ever
had. You can tell people are intensively managing this crop and paying
attention to details.
“We’re spraying for Northern corn leaf
blight and keeping it at bay. We’re finding a little stink bug activity,
and treatments have been going out for that. I am finding a lot of
herbicide drift injury. Underline the words ‘a lot’ because that’s the
best way to describe it. We need to pay attention to this for any number
of reasons. A good deal of it is paraquat drift. Corn is the canary in
the mine when it comes to paraquat. A micron-size droplet will cause
injury, it’s that sensitive.
“Wheat is very mixed. Great yields in
places, plus good test weights, but average yields and test weights in
other fields. It all seems to get back to planting dates. People who
planted within recommended dates are tending to do better.”
Robert Wells, CRC Ag Consulting, LLC,
Monticello, Arkansas: "As dry as it’s been, some farmers aren’t
going to even try to plant soybeans behind wheat where they can’t
irrigate. Even with soybean prices as high as they’ve been, they figure
that their yields in a normal year – 16 to 20 bushels per acre – aren’t
enough. They’re figuring this will be a hot, dry year with plenty of
insect pressure and extra costs, so they’ll harvest the wheat and fallow
the ground until they get ready to plant the next wheat crop.”
Wade Thomason, Virginia Extension Grain
Specialist: “Rainfall has varied over the last week from 2 tenths of
an inch up to some areas in southwest Virginia where it’s rained 9
inches. In one case, it rained 1.5 to 2 inches in a 90-minute period.
Corn needs warm weather now. A lot of it is showing sulfur deficiency
and is growing slow. Snails are out there, too.
“In the small grain, some barley harvest
will probably start at the end of next week or early the next week.
Wheat will follow 7 to 10 days after that, which will put it about 7 to
10 days ahead of our normal start for harvest.”
Scott Gifford, Gifford Crop Consulting,
Manila, Ark.: “We got 2 to 5 inches of rain last Monday (5/7) but
now have a north wind that can dry up soil pretty quickly. You can plant
2 inches deep and 2 days later not have any moisture, and a couple of my
clients who farm conventionally have stopped planting because they don’t
want to get caught like that.
“Probably 70% of our soybeans have been
planted, and herbicides have been going out. I’m hearing about worms in
beans but haven’t found any to speak of. This time last year – between
all the rain and the Mississippi River flooding – we were just starting
to plant good. We're early enough with everything this year that I’ll
probably be through with most of my acreage by September 1.”
Charlie Burmester, Extension Cotton
Agronomist, Belle Mina, Alabama: "Most corn has been sidedressed,
and rain over the weekend really helped. We had a lot of dry spots,
especially in the northern part of the valley, and corn wasn’t growing
well because fertilizer wasn’t being activated. But with this rain, that
problem should correct itself. Most areas got an inch or more, and it’s
actually raining a little now (afternoon, 5/14).
“Some soybeans have been planted. I think
here at the end we lost a little more cotton acreage to soybeans, what
with the price of beans and the price of cotton. I don’t know of anybody
who’s started harvesting wheat but expect combines to be running by this
time next week, maybe even toward the end of this week. Harvest will
probably start 10 to 14 days earlier than normal, as things look right
Hugh Whitby, KC Consulting, Wynne,
Ark.: “Some of our beans that were planted really early got size on
them and have been holding their own. Where we planted during the real
dry spell and flushed them up, they look awful. A lot of replanting is
necessary. On the other hand, we’re well within the planting window. A
few samples have been cut in the wheat, but I don’t think we’ll be full
throttle until next week, which is still 3 weeks early.”
David L. Wright, Florida Extension
Agronomist, Quincy, Florida: "Several kudzu patches already are hot
with Asian soybean rust. With this mild winter, we found it earlier than
we have in a number of years. It’s hard to say what will happen. Dry
weather earlier slowed it down, but we’re now getting a few showers that
might spread it. We do have sentinel soybean plots but have not found it
in those. But it’s definitely heavier in some kudzu that we’ve monitored
over the past several years. Some wheat harvest started last week, then
it began raining. A lot of the wheat planted in a timely period looks
Scott Holder, Helena Chemical Co.,
Cleveland, Mississippi: “Wheat harvest started this week. I’m
hearing more yields running 50 to 65 bu/acre than in that 75 to 80
range. Corn is tasseling. Soybeans need a rain.”
Wendell Minson, Bootheel Crop
Consultants, Dexter, Missouri: "None of our pre-emergence materials
in soybeans had rain, so all that is a do-over. Some of those beans came
up to pretty good stands, but pigweed broke through last week in places.
I told one grower to hit them with a contact material because there was
no chance of rain to activate residuals.
“Without moisture, people started putting
soybean planting on hold 10 to 14 days ago. We’ve gotten 1.8 inches of
rain at Poplar Bluff since April 1, and it all came in small showers, a
few tenths at a time. Some growers have been watering beds enough to
plant. Others planted, then watered to try to bring them up. We do that
occasionally on wheat beans, but these are full season beans.
“One indication about how dry it's been:
some guys furrow irrigated wheat. I’ve never seen that before. We rarely
water wheat with a pivot, but a few growers ran them over wheat 3 or 4
times this spring. I think that will pay off. Wheat pollinated well,
although test weight may be a little low. If it doesn’t rain, we’ll
start cutting within 10 days (from 5/16), the earliest we’ve ever cut.”
Jeremy Greene, Clemson University
Entomologist, Blackville, South Carolina: “We have started observing
eye-catching populations of kudzu bugs on early-planted soybeans in
South Carolina, and similar observations are being made in other
states. We did not see this last year this early on planted soybeans and
have already started getting calls about it. We did see them on
volunteer soybeans last year but not on planted soybeans this early.”
Study Shows Corn Helps Lower Gas Prices
Through Ethanol Production
Georgia: Scout Corn for Stink Bugs at V15
Stage 5-17 University
of Georgia Cooperative Extension
Georgia: Round Spots on Corn Leaves?
5-15 Seminole Crop E News
Kentucky: Fungicides Best Used At
Reproductive Stage Of Corn
5-15 Kentucky Pest News
Mississippi: Corn Disease Update and
Tassel Fungicide Decisions
5-16 Mississippi Crop Situation
Mississippi: Insect Scout School Dates Set
5-16 Mississippi Crop Situation
North Carolina: Kudzu Bug Eggs Turn Up On
Volunteer And Planted Soybean
5-15 North Carolina Crops
South Carolina: Kudzu Bugs Invading Early
Planted Soybeans 5-16
Clemson Agronomic News
Tennessee: False Chinch Bugs Killing
Cotton — Beans Next?
Virginia: Corn Nutrient Deficiencies
5-15 Virginia Cooperative Extension-Southampton County
Virginia Soybeans: On the Lookout for
Fungal Seedling Disease
5-15 Virginia Cooperative Extension
Tennessee: UT Cotton Scout School, May 25,
Louisiana: Southwest Rice Field Day,
Fenton, May 30
Louisiana: Crop Production Field Day,
Bossier City, June 6
NEWS SUMMARIES BY CROP
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