July 16, 2007

Welcome to the StopSoybeanRust.com Bulletin, your biweekly 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 7/13/2007: For July 16-18 -- In the South, the stationary front will be gone, but rain and thundershowers will remain in the region, increasing the risk for more flooding.
Risk Area: Persistent wet conditions across the South will keep spore survivability high. In addition, winds will remain from the south and pose a risk for spore transport northward, especially in Louisiana.
NEW THIS WEEK

+ Texas finds soybean rust in two more counties
Commercial soybeans in Calhoun and Wharton counties in Texas are infected with Asian soybean rust, officials reported late Friday night, July 13. Calhoun is adjacent and Wharton is one county away from positive Victoria County -- they bring the Texas county total to 6, strung all along the Gulf Coast. U.S. total of positive counties and parishes in 2007: 32 in six states. Last year at this time, there were 25 counties/parishes with soybean rust -- none active in Texas and only two in Louisiana at that point in the season. (See comparison maps below.)


+ Other recent rust finds and news:

  • First soybean rust of year in Mississippi; more rust in Texas.


  • Florida finds soybean rust in sentinel plot; severity up on kudzu.


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    The Bulletin has been sent to you with support from your soybean checkoff.

    Current USDA Soybean Rust Observation Map 7/16/2007

    Red counties are positive for rust. Total U.S. count in 2007 is 32 rust-positive counties and parishes in 6 states: Alabama 5; Florida 10; Georgia 5; Louisiana 5; Mississippi 1; Texas 6.









    Last Year's USDA Soybean Rust Observation Map 7/16/2006

    Last year as of 7/16/2006, total rust-infected counties were 25 in five states: Alabama 5; Florida 12; Georgia 5; Louisiana 2; Texas 1. According to USDA commentary at the time, only three of the finds were in 2006-crop soybeans. Note the absence of rust on the map west of the two Louisiana counties -- none active in Texas and none found yet in Mississippi .






    + Aphid numbers are rising in NE Indiana -- same area hard hit in 2005. See latest USDA observation map and notes from other states in our Soybean Aphid Watch.

    + Good of IL: Markets surprised by USDA acreage report
    Darrel Good of the University of Illinois comments on how the June 29 USDA Prospective Plantings report contained several surprises for the grain markets.
    Full story.

    + Quilt(R) fungicide receives Sec. 3 registration for soybeans
    Syngenta Crop Protection announced that the U.S. EPA has issued a Section 3 registration for the use of Quilt(R) fungicide on soybeans.
    Full story.

    + Frogeye leaf spot found in Ohio soybean sentinel plots
    Frogeye leaf spot, a rare foliar disease in Ohio, was identified at one of Ohio's 45 soybean sentinel plot locations in late June.
    Full story.

    + Crop Adviser Institute offers new modules on soybean rust, aphids
    The Crop Adviser Institute at Iowa State University has released four new Crop Adviser Modules online, including the 2007 modules for Asian soybean rust and soybean aphids.
    www.cai.iastate.edu.

    + National Rust Symposium hotel registration open
    The 2007 National Soybean Rust Symposium is set for Dec. 12-14 in Louisville. Sign up for e-mail updates or register for hotel rooms online.
    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 forecasts and commentary and other timely information.


    + Our Running Tally of 2007 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
    From Penn State's Computational Epidemiology and Aerobiology Lab:
  • Animated 2005-2006-2007 soybean rust progression maps (current through June 29, 2007)
  • Side-by-side animated comparisons of '05-'06; '06-'07; '05-'07 (current through June 29, 2007)

  • USDA Documentary: "The Rust Invasion"
    Part of Episode 17 of the USDA-CREES "Partners" news video magazine.

    • + Rust and weather forecasts
  • USDA provides forecasts five days out for weather and rust risk.

  • NOAA weather site provides radar images, rainfall, heat, humidity, hurricane data and much more weather-related information.
  • NWS National Hurricane 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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    Marilyn Cummins
    Editor
    Click here to e-mail editor

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