Improve Management of Bt-Resistant Bollworm Populations with New ‘Focus on Cotton’ Webcast

Memphis, TN --- Bollworms are beginning to exhibit resistance to transgenic (Bt) varieties of cotton, which  prompts the need for supplemental insecticides to minimize losses.

A new Focus on Cotton webcast titled “Changing Bt Technologies and Bollworm Management in Bt Cotton” helps cotton growers, consultants, and other industry experts monitor the potential impact of bollworm populations and determine when additional treatments may be advantageous.  This 53-minute talk by David Kerns, Associate Professor at Louisiana State University, provides information that helps users: 

  • Thoroughly scout for bollworms and plant injury
  • Identify critical infestation and injury thresholds
  • Calculate the potential benefits of insecticide treatments 
  • This presentation is available at no charge, courtesy of Cotton Incorporated, through the ‘Focus on Cotton’ webcast resource located at the Plant Management Network,  ‘Focus on Cotton’ contains over 35 webcasts on various aspects of cotton crop management. These talks--freely accessible 24 hours a day, 7 days a week--cover agronomic practices, crop protection, and ag engineering.  This resource also features a new and improved Cotton Extension Search tool, where users can conveniently search for extension resources across all U.S. land-grant universities serving cotton producers.  



    Phil Bogdan, Plant Management Network, 651-994-3859, pbogdan [at] scisoc [dot] org

    Stacey Gorman, The Cotton Board, 870-226-1445, sgorman [at] cottonboard [dot] org


    About Plant Management Network:  All subscription-based information on the Plant Management Network website can be accessed for one low $40 annual subscription fee. Plant Management Network,, is a cooperative not-for-profit resource for the applied agricultural and horticultural sciences. Together with more than 80 partners, which include land-grant universities, scientific societies, and agribusiness, PMN publishes quality, applied, and science-based information for the practitioner. 


    About the Cotton Board: The Cotton Research & Promotion Act established the Cotton Board as a quasi-governmental, non-profit entity to serve as the administrator of the Cotton Research & Promotion Program. Funded by America’s cotton producers and importers through the cotton check-off, the Program’s research and promotion activities are conducted worldwide by Cotton Incorporated, the Cotton Board’s sole-source contracting organization, to increase the demand for and improve the market position of cotton.


    The Cotton Research & Promotion Program continues to work in all areas of cotton’s pipeline – from the field to the consumer – to keep cotton the number one fiber choice in the U.S. For more information about the Cotton Board and the innovative activities stemming from the Program, visit