Wednesday, January 9, 2019: 10:50 AM

Galerie 1 (New Orleans Marriott)

Rachel R. Guyer , University of Tennessee

Melvin A. Newman , University of Tennessee

Heather Kelly , University of Tennessee

Thomas W. Allen , Mississippi State University

Gabe Sciumbato , Mississippi State University

Tessie H. Wilkerson , Mississippi State University

J. D. Barham , University of Arkansas Division of Agriculture

William Barnett , NEREC - University of Arkansas Division of Agriculture

Alan Beach , University of Arkansas

A. R. Keiser , Oklahoma State University

M. B. Bayles , Oklahoma State University

Laval M. Verhalen , Oklahoma State University

Jacobo Caceres , Mississippi State University

Gary W. Lawrence , Mississippi State University

P. D. Colyer , LSU AgCenter

T. Kelley , Oklahoma State University

R. Thacker , Oklahoma State University

Robert C. Kemerait , University of Georgia

Kathy S. Lawrence , Auburn University

Hillary L. Mehl , Virginia Tech Tidewater AREC

Patrick M. Phipps , Virginia Tech

Guy Padgett , Louisiana State University

Paul Price , Louisiana State University

Craig Rothrock , University of Arkansas

Scott Winters , University of Arkansas

Greta Schuster , Texas A&M University Kingsville

Terry Spurlock , University of Arkansas

Jason Woodward , Department of Plant and Soil Science, Texas Tech University

Audio File Recorded Presentation

The National Cottonseed Treatment Program (NCST) is a cotton seedling disease study that has historically been conducted annually out of the University of Arkansas from 1995-2017. A range of 12-20 cooperators have participated each year from universities in California, Texas, Oklahoma, Arkansas, Mississippi, Louisiana, Alabama, Tennessee, Virginia, South Carolina, Georgia, and Florida. Seeds treatments were nominated annually by chemical industry representatives and trials at each location analyzed their effects on cotton seedling survival over various environmental conditions and populations of four pathogens: Pythium, Rhizoctonia, Thielaviopsis, and Fusarium. Seedlings were evaluated for growth (node count), rated for disease severity, and plated on selective media for qualitative and quantitative analysis of each pathogen. In 2018, investigators at the University of Tennessee inherited the coordination of the NCST program and continued all protocols as they had been conducted during its 23-year history. A historical review of the NCST program and data reported will be presented, specifically analyses of the different control treatments, pathogen populations, and their effects on cotton seedlings.

A Historical Review of the National Cottonseed Treatment Program: 1995-2017