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September 6, 2006
Welcome to the StopSoybeanRust.com Bulletin, your by-request weekly update on Asian soybean rust. Please forward this Bulletin to friends and
colleagues, who can subscribe here to receive the Bulletin and our Rust Flash alerts. Past issues are archived
here.
RUST FORECASTS
USDA SBR Forecast 9/4/2006: For 9/5-6, USDA says disturbed weather will
migrate southward through eastern TX and parts of western LA. A front pushing slowly east through the Carolinas will keep the
shower risk high. An increase in rust risk is expected across east TX and western LA as showers and thunderstorms develop,
light-to-moderate winds come from the southeast and sunshine remains limited. Risk will also stay high in eastern and central
GA and SC due to continued showers. New forecast due out late today (9/6).
NAPDFC forecast 9/1/2006:
For Mon. and Tues., conditions in and around the known sources were expected to be mostly unfavorable to mixed. Long-range
transport and deposition not anticipated. Short-range transport near the source regions possible, though risk levels will
not be in the upper categories. No forecast on Labor Day; new forecast
due out late today.
Tropical Weather Update 10 p.m. CDT 9/5/2006: Tropical Storm Florence, sixth named storm of
the season, is expected to strengthen as it heads WNW at 12 mph -- on track for the E coasts of FL and
GA if it survives and remains on this course the next few days (see map). At 10 p.m. CDT, the storm's center was about 895 mi. E of the Northern Leeward
Islands.
NEW THIS WEEK
ALERT: Soybean rust found in soybean plot in Colquitt County, GA
The first Asian soybean rust this year in Colquitt County, Georgia, was found Aug. 28 (reported 9/5) in a university soybean
sentinel plot in Moultrie. Colquitt, located between rust-positive counties Tift and Brooks, is the seventh county
positive for rust in the state; 38th in the U.S. Soybean rust has been found on soybeans in 19 different counties in seven
states: AL, FL, GA, LA, MS, SC and TX. (At this point last year, there were 54 positive counties in the U.S.)
Full
story.
ALERT: Soybean rust found in sentinel plots in Orangeburg County, SC
SC reported 8/31 that Asian soybean rust was found in soybean sentinel plots in a second South Carolina county -- Orangeburg
-- on Aug. 28 and Aug. 30. Rust was found in Calhoun County, SC, Aug. 17.
Full
story.
Quick rust updates
South Carolina: Rust is increasing in the infected Calhoun County site, based on samples collected Aug. 30,
officials said Monday. Number of pustules per leaf exceeded 20 in three of the seven infected leaves.
Texas: The infected field of Group 5 soybeans in Liberty County has been defoliated and will be harvested shortly,
Texas officials said Sunday. The limited acreage of commercial Group 6 or 7 soybeans in Liberty that are at growth state R5 or younger are at greatest risk if cooler, wetter weather occurs this week.
Source: State commentaries on www.sbrusa.net.
The Bulletin has been sent to you by an educational grant from Bayer CropScience.
Latest USDA Soybean Rust Observation Maps 9/5/2006
Red counties are positive for rust. Total positive county
count in 2006 is 38 in seven different states.
Good of IL: Can the soybean crop be as good as it looks?
The soybean market apparently expects a larger production forecast on Sept. 12, Darrel Good of the University of Illinois
said Tuesday in his Weekly Outlook.
Full
story.
OSU ag engineer Ozkan to demo spray techniques for rust, drift control
Spray drift may be the No. 1 concern of pesticide applicators, but there are ways to minimize the problem while still getting
effective control of pests such as soybean rust and soybean aphids.
Full
story.
Colo. State hurricane team now predicts only 13 named Atlantic storms this season
The hurricane forecast team at Colorado State continues to downgrade its 2006 forecast for the Atlantic basin based on
changing climate signals and below-average activity in the first third of the season.
Full
story.
Late summer good time to check soybean field agronomic issues
Monitoring soybean fields now for agronomic issues, such as brown stem rot, soybean cyst nematode (SCN), Phytophthora root
rot, iron chlorosis, white mold and sudden death syndrome (SDS), will help growers make better soybean seed selections for
2007, Pioneer Hi-Bred says.
Full
story.
USDA: Soybean crop progress
Dropping leaves: 13 percent, up from 7 percent last week and even with 13 percent a year ago. Five-year average is 12
percent. Condition: Only change from last week was a one point shift from good to excellent -- still totaling 59 percent good
excellent; fair unchanged at 27 percent. Poor-very poor unchanged at 14 percent. Last year, only 54 percent was
good-excellent at this point in the season.
Source: 9/5/2006 USDA Crop
Progress report for week ending Sept. 3, 2006.
RUST RESOURCES
+ SOYBEAN RUST TRACKING CENTER
Visit our SOYBEAN
RUST TRACKING CENTER -- updated daily tracking new rust finds,
tropical weather reports and maps, USDA and NAPDFC forecasts and
commentary and other timely information.
+ Our StopSoybeanRust Running Tally of 2006 Rust Finds
gives you a quick rundown
of when and where rust has been found this year.
+ Our SOYBEAN
APHID WATCH page gives latest USDA aphid observation map and a
quick snapshot of soybean aphid sighting reports from state
specialists as reported on www.sbrusa.net and University Web
sites.
+ MAPS
Updated animation for
2006 showing progression of soybean rust via U.S. rust
observation map changes, day-by-day, for all of 2005 and up through Aug.
10, 2006.
Side-by-side
comparison of '05 and '06 rust spread in U.S., through Aug. 31,
2006. Both animations are from Penn State's Computational Epidemiology
and Aerobiology Lab.
Full program online for upcoming 2006 National Soybean Rust
Symposium
Details of the technical program planned for the 2006 National Soybean
Rust Symposium Nov. 29-Dec. 1, 2006, in St. Louis are now available
online.
Full
story.
+ National and state rust hotlines and forecasts
USDA now is supplying
expanded forecasts for the Southeast, reporting on current weather
conditions, and then forecasting weather and rust risk out 1-2 days and
out 3-5 days.
The North American Plant Disease Forecast Center (NAPDFC)
gives soybean
rust forecasts Mon., Wed. and Fri., based on six potential source
areas (Calhoun, SC, added last week).
Alabama: Auburn University Soybean Rust Hotline for weekly
updates is 1-800-446-0388.
Florida rust hotline toll-free nationwide at
1-866-361-9942
Mississippi hotline for soybean rust at 1-800-516-0865,
sponsored by BASF and the Mississippi Soybean Promotion Board.
Tennessee hotline for soybean rust at 1-877-875-2326.
Kentucky now updating its hotline daily at
1-888-321-6771.
See our Soybean Rust Hotline List in the SOYBEAN RUST TRACKING CENTER.
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Marilyn Cummins
Editor
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Bulletin has been sent to you by an educational grant from Bayer CropScience. |