July 12, 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 7/10/2006: Widely scattered showers in SE; widespread rain in E. OK, S. MO and thru Ohio River Valley thru today. Light winds and only scattered showers are expected over the Gulf Coast region, limiting the spread of soybean rust.
  • NAPDFC forecast 7/10/2006: Was chance Mon. for some rust spore transport and deposition in south-central LA and northeast LA. Risk to these areas will still be low, given the weakness of the source, but the episode bears watching. Low risk to susceptible plants in SE Mon.-Tue. New forecast due out later today (7/12/2006).
  • The National Hurricane Center says no tropical storm development expected through Thursday.
  • See our SOYBEAN RUST TRACKING CENTER for updated forecasts.
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    NEW THIS WEEK

    ALERTS: Soybean rust found in GA soybean sentinel plot (7/10), on more LA kudzu (7/7)
    Asian soybean rust was found in soybeans for the third time this season, this time in the soybean sentinel plot at Attapulgus in SW Georgia on Monday. Last Friday, more rust-infected kudzu was found in Louisiana; in Iberia Parish just south of the last find in Lafayette Parish the week before. Now 25 counties in 5 states with rust.
    Full GA rust story.
    Full LA Iberia rust story.

    Quick state updates:
  • Alabama: Soybean rust still active, but at very low levels, on kudzu patches in Mobile and Montgomery. Commercial soybean fields were being scouted in SE AL July 11 and 12.

  • Florida: No new FL developments this past week, but GA infected soybean site at Attapulgus only 13 mi. N of a positive FL kudzu site. Kudzu is infected in 11 FL counties; Martin County soybean plot only site positive for rust on soybean. State has gone dry again, about 50 percent below normal rainfall. Dew still present, so sporulation still ongoing in infected sites.
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    The Bulletin has been sent to you by an educational grant from Bayer CropScience.

    Latest USDA Soybean Rust Observation Map 7/12/2006.
    Red counties are positive for rust at the moment, 21 in U.S. with latest in GA soybeans and more LA kudzu. Red-hatch counties are rust confirmed/destroyed=1. Total positive county count now 25. Last year, the count as of 7/12 was only nine counties, but rust was already on soybeans in three: Baldwin in AL, Marion in FL and Seminole in GA -- same three states that have rust on soybeans this year.














    Yang of ISU assesses risk of soybean white mold in 2006
    X. B. Yang, Iowa State University plant pathologist, discusses risk factors for soybean white mold -- which was prevalent in 2004 in eastern Iowa and tends to be a problem every other year.
    Full story.

    Full program now online for 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.

    Crop Progress: Thirty-eight percent of U.S. soybeans are blooming; 7 percent setting pods. Condition down again this week: 58 percent in excellent/good condition (down from 64); 30 percent fair (up from 27); 12 percent poor/very poor (up from 9).
    Full story.
    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.


    + NEW: 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 observation map and a quick snapshot of all soybean aphid sighting reports from state specialists as reported on www.sbrusa.net.

    + MAPS
  • Updated animation for 2006 showing U.S. rust observation map changes, day-by-day, for 2005 and now up through June 7, 2006.
  • Side-by-side comparison of '05 and '06 rust spread in U.S. -- clearly shows how much earlier soybean rust was confirmed in the Southeast this year. Both animations are from Penn State's Computational Epidemiology and Aerobiology Lab.


    • Always available: our 2005 USDA Observation Map (static) as a quick reference for where rust was found last year.

    + National and state rust hotlines and forecasts
  • USDA is supplying weather conditions and forecasts for the Southeast, once or twice a week.
  • The North American Plant Disease Forecast Center (NAPDFC) gives soybean rust forecasts Mon., Wed. and Fri., based on five potential source areas -- Lafayette, La., 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.

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    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 850 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. 7/10/2006) into the search window, always visible in the left-hand column of the site.

    First -- and most accurate -- with today's soybean rust news.

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    Marilyn Cummins
    Editor
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    The mission of StopSoybeanRust.com is to provide soybean growers, agricultural retailers, crop consultants and all those concerned with the health of the U.S. soybean crop with the No. 1 trusted source on the Web for the latest news, resources and training available to help combat soybean rust. StopSoybeanRust.com was the first objective, independent news and educational site up and ready to serve you when Asian soybean rust arrived in November, 2004.

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