is part of the Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them. Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

  • American Agriculturist
  • Beef Producer
  • Corn and Soybean Digest
  • Dakota Farmer
  • Delta Farm Press
  • Farm Futures
  • Farm Industry news
  • Indiana Prairie Farmer
  • Kansas Farmer
  • Michigan Farmer
  • Missouri Ruralist
  • Nebraska Farmer
  • Ohio Farmer
  • Prairie Farmer
  • Southeast Farm Press
  • Southwest Farm Press
  • The Farmer
  • Wallaces Farmer
  • Western Farm Press
  • Western Farmer Stockman
  • Wisconsin Agriculturist

Scientists examining three ‘spores of interest’

LSU AgCenter and University of Arkansas specialists are examining three rust spores with features resembling P. pachyrhizi, the causal agent of Asian soybean rust, that were found in a spore trap near St. Joseph, La.

The specialists caution that there has been no confirmation that the “spores of interest” are from the Asian soybean rust pathogen nor can there be from field examination of the spores. The glass slides from the traps have been sent to the University of Arkansas for microscopic evaluation.

“It is extremely important to not be alarmed by this finding,” the LSU specialists said in an e-mail distributed to county Extension agents. “No Asian soybean rust has been found in fields adjacent to the spore trap. No ASR has been found in Louisiana or surrounding states.”

If the spores prove to be from the ASR pathogen, specialists will determine if conditions are favorable for disease development and issue an appropriate alert.

The e-mail said the spores were found in a spore trap sponsored by Syngenta Crop Protection and managed by Boyd Padgett, a plant pathologist with the LSU AgCenter’s Macon Ridge Station near Winnsboro, La.

“More than anything else, this finding means that scouting of ASR should not only continue, but intensify,” the e-mail said.

Hide comments


  • Allowed HTML tags: <em> <strong> <blockquote> <br> <p>

Plain text

  • No HTML tags allowed.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Lines and paragraphs break automatically.