Arkansas Agriculture Newsletters
Arkansas Weekly Crop Report - September 20, 2006
Soybeans •
Cotton
Soybeans
Arkansas Soybean Crop Situation
Trey Reaper
Current estimates indicate around 25% of the crop is harvested.
Favorable weather through the weekend will result in several more
acres harvested as most growers complete corn and rice harvest.
County harvest estimates are listed below.
Jefferson County (Don Plunkett): Group IV irrigated lines are
now harvesting in the 40 to 60 plus bushel range.
Phillips County (Robert Goodson): The county is about 80%
harvested. Dry land beans average in the low twenty's; irrigated
beans are around the mid-40 range.
Lafayette County (Joe Vestal): Late group IV's irrigated
yields are averaging 38 to 45 bu/ac. Non-irrigated yields are
running from 25 to 35 bu/ac.
Yell County (Ken Combs): Non-irrigated Group IV's are15-25
bu/ac; the irrigated Group IV's are 40-70 bu/ac.
Soybean Research Verification Reports
North SRVP (Trey Reaper): The Lawrence County field
was harvested Monday with a 55 bu/acc average. Harvest has begun on
the Craighead and Sebastian County fields but no yield estimates are
available at this time. Stinkbugs continue to build in later planted
fields, and the Perry County South field was treated with 0.8 lb/ac
of Orthene. Approximately 10 acres on the south end of the Perry
County North field was treated also. We have terminated irrigation
on all fields with the exception of Perry County South. This field
received over 2" of rain over the weekend, so we will decide next
week, when the soil is dry, whether to water again.
Economics
Bob Stark – September 8, 2006
An early 5 cent rally during the Labor Day holiday drove old crop
soybean market prices into an upward trend for the week. The old
crop bean weekly average was at $5.30 for September 5-8, an 8-cent
increase from the previous weekly average. Daily market movements
were uneven before closing the week at $5.33 per bushel, the highest
daily average of the week. Market analysts continue to expect the
pressure of harvest deliveries and large current stocks to move the
long-term market down.
Fourteen of the fifteen NASS market locations are reporting old
crop quotes. Weekly movements left the statewide average price for
old crop beans at 13 cents above the previous Friday’s close. The
highest daily market price of this past week was $5.52, recorded on
Thursday in Helena; thed the lowest price was $4.99, recorded Monday
in Jonesboro.
New crop soybean prices gained Tuesday, lost all of that gain and
more on Wednesday, and then recovered the losses to end the week
with a modest 2-cent gain from the prior Friday. The statewide
weekly average for new crop No. 1 yellow soybeans across the fifteen
reporting state markets was only 1 cent higher over the most recent
week at $5.31 per bushel. The new crop premium that had existed over
old crop beans was completely washed away into an actual 1-cent
deficit by Friday, September 8.
The range of prices has extended from a high of $6.15 for the
week ending December 19, to lows of $5.22 for the week ending
October 7 and the recent week ending September 1, 2006. A small high
of $5.92 occurred during the week ending May 12, and another of
$5.90 occurred during the week ending July 7.
Soybean Rust Update
Amy Greenwalt
Soybean rust monitoring has continued to increase due to more
rust being found in Louisiana and Texas. The eleven spore traps are
still monitored weekly. The sentinel plots that are north of I-40
are sampled once a week; the plots south of I-40, including the
kudzu patches, are sampled twice a week. Samples from the Soybean
Research Verification Program fields continue to be collected once a
week. This more extensive scouting is a result of the finds in
Mississippi, northern Louisiana and eastern Texas. No soybean
rust has been detected in Arkansas to date.
If any suspicious leaves are found in commercial soybean fields,
we encourage you to send them to the Disease Diagnostic Clinic in
Lonoke.
National Soybean Rust Commentary
On September 14, North Carolina officials reported the first
2006soybean rust find for the state. The rust was found on soybeans
in Columbus County, which borders South Carolina. Soybean rust was
found in Jefferson County, Texas, in a soybean sentinel site.
Soybean Rust was reported September 14 in Cooks County, Georgia, on
soybeans in an industry research plot. Currently, rust has been
found infecting this year's soybeans in 35 different counties in
eight states - AL, FL, GA, LA, MS, SC, TX, and NC. Including reports
on kudzu, there are a total of 55 counties in eight states with rust
this year-5 in Alabama; 13 in Florida; 10 in South Carolina and
Louisiana; 11 in Georgia; 3 in Texas; 2 in Mississippi; and one in
North Carolina.
Spore trapping continues throughout the U.S. using both active
and passive traps. Positive spore trap information does not imply
infection has taken place, and plant samples are used exclusively
for recording positive rust occurrence. Recent shower activity has
been reported in some of the infected areas, and local infection has
increased in most cases. Much like the 2005 season, more soybean
rust finds are expected late this season through the next several
months. Please consult your state commentary for more detailed
information about conditions in your state.
Soybean Rust Forecast
Rick Cartwright
www.sbrusa.net
Current Conditions
Updated 09/14/06 08:15 AM
A large disturbance over the eastern third of the United States
is producing widespread clouds and showers primarily from the
southern Great Lakes to the Ohio Valley and Appalachians. The
counter-clockwise wind flow is sending cooler, less humid air into
the lower Mississippi Valley and the Plains. A front in southern
Texas is promoting more showers. Cool, dry conditions dominate the
upper Plains and part of the Midwest.
Risk Area: The risk area will expand north and west through
South Carolina and into bordering parts of North Carolina due to
heavy deposition and light transport in this direction. Little
change is expected elsewhere.
Visitors are encouraged to check the Observation and State Update
screens on this web site to follow the progress of sentinel plots
and scouting in their local areas. Visitors are also encouraged to
frequently consult the Forecast Outlook and Disease Management
commentaries supplied by state soybean specialists.
1 - 2 Day Forecast
September 14 – 15
The disturbance in the eastern states will migrate slowly to the
mid-Atlantic coast, but clouds, scattered showers, and plenty of fog
will remain behind from the Appalachians to the shoreline. Drier and
more comfortable weather will return to the Ohio Valley and Great
Lakes with a steady warming trend. A strong cold front will move
onto the high Plains accompanied by showers and thunderstorms and
preceded by a strong air flow from the south. The Gulf region will
mainly be settled with a few storms over Florida and some showers
returning on Friday to the western Gulf coast.
Risk Area: Generally status quo, with some increased risk in
eastern and central Georgia due to winds pushing airborne spores
back into the region. Some risk increase is likely in eastern Texas
as winds from the southeast develop.
Visitors are encouraged to check the Observation and State Update
screens on this web site to follow the progress of sentinel plots
and scouting in their local areas. Visitors are also encouraged to
frequently consult the Forecast Outlook and Disease Management
commentaries supplied by state soybean specialists.
3 - 5 Day Forecast
September 16 - 18
A period of rather warm and humid conditions is expected in the
eastern third of the nation. Morning fog will be widespread in the
Appalachians and parts of the Northeast. The strong cold front from
the Plains will push steadily toward the east with showers and
thunderstorms diminishing as the front moves into the eastern Lakes
and Ohio Valley on Monday. A pronounced air flow from the south will
draw warm and humid weather from the Gulf States into the Atlantic
Seaboard. Only patchy thunderstorms are expected with the front in
the South, mainly in Texas. Despite increased activity in the
Tropics, no storms are expected to effect land areas during the next
five days.
Risk Area: Expect an expansion of risk into northeast Texas
and western Louisiana. Little change in the risk zones are
anticipated east of the Mississippi delta.
Visitors are encouraged to check the Observation and State Update
screens on this web site to follow the progress of sentinel plots
and scouting in their local areas. Visitors are also encouraged to
frequently consult the Forecast Outlook and Disease Management
commentaries supplied by state soybean specialists.
Cotton
The Cotton Report
Crop Status
Bill Robertson-- Extension Agronomist, Cotton
As of September 5, the Arkansas Statistical Office of the
National Agricultural Statistics Service estimates that open bolls
will occur on 47% of acres statewide. Last week’s average was 30
percent. The open boll average was 58% last year, and 41% for the
last five years for this date. The condition of the crop is 1% very
poor, 7% poor, 27% fair, 47% good, and 18% excellent. The USDA
update released in August estimated the Arkansas crop to yield 1032
lbs lint per acre. Our current ten-year and five-year average lint
yield per acre is 845 and 949 lbs, respectively. Estimates for other
Mid-South states include: MO – 1030 lbs, LA – 886 lbs, TN – 863 lbs,
and MS – 840 lbs. The US crop is estimated to be 20.4 million bales.
The next update is scheduled to be released September 12. This and
other information can be found online at
http://usda.mannlib.cornell.edu/usda/current/CropProd/CropProd-09-12-2006.pdf
Defoliation at 850 heat units beyond cutout generally produces
the highest revenues when calculated by using pounds of cotton
picked and its value based on Loan. Open bolls generally run 45% to
50% at this timing while nodes above cracked boll are five.
Traditional timings of 60% open bolls and nodes above cracked boll
of four generally occur near 950 to 1000 heat units beyond cutout.
Fields that reached cutout July 27 have accumulated 850 heat units
beyond cutout today. Heat units beyond cutout may be calculated by
visiting our Cotton DD-60 program at
http://dd60.uaex.edu/dd60home.asp.
Field micronaire estimation using the Hal Lewis procedure
indicates a strong potential for ST5599BR, ST5242BR, and DP555BG/RR
to receive discounts if left in the field until 60% to 70% open. Other widely planted varieties including
DP445BG/RR, DP444BG/RR, and DP434RR have shown a low potential for
high micronaire discounts with delayed defoliation. Contact your
local county Extension agent for more details concerning testing
results in your county or area.
Harvest Aid Treatments
Little if any harvest aid treatments have been made in far
northeast Arkansas. As much as 60% to 75% of fields have received
one defoliation treatment in central and southern Arkansas.
Approximately half of that has received a second application.
Pickers are starting to get into some of the better irrigated ground
the end of this week. Reports from central and southern Arkansas
have ranged in the 1100 lb to 1200 lb lint per acre range from the
better irrigated ground. These fields were in the 1200 lb to 1400 lb
lint per acre range last season. Reports of 350 lb to 400 lb lint
per acre are coming from dryland fields from some of the dryer areas
of the state.
Cool Weather Slows Defoliation Speed
Last weekend’s cool weather slowed down defoliation speed. Fields
that were treated during that time were very slow to respond. The
following points below were topics of some of my calls this last
week:
- Fine droplets that are "fogged in" will often work well on
short statured cotton. However, tall rank cotton will require
larger droplets to penetrate the canopy.
- Droplet size is perhaps more important than gallonage.
Fifteen-gallon work by ground using very small droplets could be
less effective than 10 gallon work using droplets that give good
coverage and penetration into the canopy.
- Expect little regrowth inhibition beyond 14 days with
Dropp/FreeFall using the gallon to 80 acres rate (1.6 oz/A).
- Increase Def/Folex rates to one gallon to 16 to 20 acres in
the first of a two application program.
- Continue to use a gallon to 5 acre rate of ethephon once
you are far enough ahead of your picker with defoliation.
- Use 0.25% v/v of NIS with any Aim tank mixes. Will move to
0.5% COC as temperatures take the next dive. Continue to use 1%
v/v COC with other PPOs such as Resource and ET.
- Increase Aim rates from 0.25 oz to 0.33 oz/A in the first
of a two application program. Use 0.65 oz to 0.75 oz/A in the
second trip.
- Spot-treat weedy areas with full rates of PPOs using 1% COC
regardless of the product used.
Cotton Research Verification Program Update
Frank Groves-CRVP
Coordinator
The Desha-Holt and Chicot-Poole fields will receive the initial
application of defoliant tomorrow (September 09). They will both
require a two-shot approach. We applied Dropp SC at 1.6 oz/A and
ethephon at 6.4 oz/A on the first application; we will likely follow
with Def at 10.6 oz/A and ethephon at 32 oz/A.
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