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ARS Home » Plains Area » College Station, Texas » Southern Plains Agricultural Research Center » Aerial Application Technology Research » Research » Publications at this Location » Publication #342418
Title: Site-specific management of cotton root rot using airborne and satellite imagery and variable rate technology

Author
item Yang, Chenghai
item ODVODY, GARY - Texas A&M Agrilife
item THOMASSON, JOHN - Texas A&M University
item ISAKEIT, THOMAS - Texas A&M University
item MINZENMAYER, RICHARD - Bayer Cropscience
item DRAKE, DAVID - Texas A&M Agrilife
item NORTON, RANDY - University Of Arizona
item BARNES, EDWARD - Cotton, Inc
item NICHOLS, ROBERT - Cotton, Inc

Submitted to: Experiment Station Bulletins
Publication Type: Other
Publication Acceptance Date: 7/10/2017
Publication Date: 7/12/2017
Citation: Yang, C., Odvody, G., Thomasson, J., Isakeit, T., Minzenmayer, R., Drake, D., Norton, R., Barnes, E., Nichols, R. 2017. Site-specific management of cotton root rot using airborne and satellite imagery and variable rate technology. Cotton Inc., Bulletin, Cary, NC. 4 p.

Interpretive Summary: Cotton root rot is a serious cotton disease that can now be effectively controlled with Topguard Terra Fungicide. However, its recurrence in the same areas year after year makes fungicide application only to infested areas more effective and economical than uniform application. Based on 17 years of remote sensing of the disease and two years of field experiments of site-specific fungicide treatment, this bulletin was developed to provide practical guidelines for creating cotton root rot prescription maps from historical airborne and high resolution satellite imagery and for adapting variable rate controllers to existing tractors/planters/applicators for implementing site-specific fungicide applications. These guidelines will enable cotton growers, crop consultants, and agricultural dealers to apply the site-specific treatment approach to reduce their fungicide use and costs by 30-70 percent, depending on particular within-field infestation levels.

Technical Abstract: Cotton root rot is a serious cotton disease that can now be effectively controlled with Topguard Terra Fungicide. However, its recurrence in the same areas year after year makes fungicide application only to infested areas more effective and economical than uniform application. Base on 17 years of remote sensing of the disease and two years of field experiments of site-specific fungicide treatment, this bulletin was developed to provide practical guidelines for creating cotton root rot prescription maps from historical airborne and high resolution satellite imagery and for adapting variable rate controllers to existing tractors/planters/applicators for implementing site-specific fungicide applications. These guidelines will enable cotton growers, crop consultants, and agricultural dealers to apply the site-specific treatment approach to reduce their fungicide use and costs by 30-70 percent, depending on particular within-field infestation levels.