|Previous||1 of 1||Next|
small (250x250 max)
medium (500x500 max)
large ( > 500x500)
Entomology and Plant Pathology, Oklahoma State University 127 Noble Research Center, Stillwater, OK74078 405.744.5527 Vol. 12, No. 25 http://entoplp.okstate.edu/Pddl/ Jun 27, 2013 Wheat Disease Update Bob Hunger, Extension Wheat Pathologist Stem rust was found in Oklahoma last week by Dr. Art Klatt (OSU Wheat Geneticist/Breeder). He found it on stems of entries in one of his trials near Stillwater, OK. My first impression when I saw the stems was that it was just saprophytic growth on the stem as the stems were all dead. However, examination with the stereoscope showed that much of this discoloration actually was stem rust pustules just starting to erupt through the wall. There were many places where I could lift up the outer wall/epidermis of the stem and directly underneath that wall were orange urediniospores. In the few pustules that had erupted, teliospores could be found as well. This is confirmation that although stem rust will infect wheat in Oklahoma, our wheat typically finishes sufficiently early so that stem rust is not a concern. ______________________________________________________________________________ Dr. Richard Grantham Director, Plant Disease and Insect Diagnostic Laboratory Oklahoma State University, in compliance with Title VI and VII of the Civil Rights Act of 1964, Executive Order 11246 as amended, Title IX of the Education Amendments of 1972, Americans with Disabilities Act of 1990, and other federal laws and regulations, does not discriminate on the basis of race, color, national origin, gender, age, religion, disability, or status as a veteran in any of its policies, practices or procedures. This includes but is not limited to admissions, employment, financial aid, and educational services. Issued in furtherance of Cooperative Extension work, acts of May 8 and June 30, 1914, in cooperation with the U.S. Department of Agriculture, Robert E. Whitson, Director of Oklahoma Cooperative Extension Service, Oklahoma State University, Stillwater, Oklahoma. This publication is printed and issued by Oklahoma State University as authorized by the Vice President, Dean, and Director of the Division of Agricultural Sciences and Natural.
|Okla State Agency||
Oklahoma State University
|Okla Agency Code||
|Title||Pest e-alerts, 06/27/2013, v.12 no. 25|
Oklahoma State University. Cooperative Extension Service.
|Purpose||Wheat Disease Update, Bob Hunger;|
|For all issues click||
|Digital Format||PDF, Adobe Reader required|
|ODL electronic copy||Downloaded from agency website: http://entoplp.okstate.edu/pddl/pddl/2013/PA12-25.pdf|
|Rights and Permissions||This Oklahoma state government publication is provided for educational purposes under U.S. copyright law. Other usage requires permission of copyright holders.|