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.


  • + Our RSS Feature: Use the "XML" button next to the Top Stories heading on our home page to have our news sent to your Web page or RSS news gatherer.

    + E-mail, print, search stories with ease
    Every story on StopSoybeanRust.com has a link to let you pass along information with "E-mail a friend." And make any story "Printer Friendly" with one quick click. Find the information you need in our extensive Archives, where more than 900 articles and past Bulletins tell the story of soybean rust in the U.S. from our site's launch Nov. 1, 2004, to today. The site is totally searchable -- just type any keyword, name or date (use slashes, i.e. 9/5/2006) into the search window, always visible in the left-hand column of the site.



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    Marilyn Cummins
    Editor
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