In a webinar on Monday, February 27, at 3 PM Eastern, Austin Hagan, professor and extension plant pathologist at Auburn University, will discuss ways to recognize target spot in your field as well as management techniques to lower the risk.
Target spot, which is caused by the fungus Corynespora cassiicola, is an emerging disease in cotton in the Lower and Mid-South in the U.S. Phylogenetically, C. cassiicola isolates collected from cotton across the Lower South are distinct from those collected from other crops, particularly vegetables. This suggests that C. cassiicola isolates from cotton are either a recent introduction to the U.S. or has arisen from a mutation. Rainfall patterns along with variety selection and management inputs relating to yield potential influence the target spot risk in cotton. Greatest target spot-attributed defoliation and subsequent yield losses, which may exceed 300 pounds of lint per acre, have been recorded for an intensively managed, susceptible variety having a yield potential above 2.5 to 3 bales per acre.
Dr. Austin Hagan of Auburn University will discuss the results of a two-year study on developing integrated strategies for managing target spot in cotton. Topics that will be addressed in the webinar will include disease distribution, variety susceptibility and potential yield loss, efficacy of registered and candidate fungicides, fungicide application number, timing, methodology, and placement, as well as the influence of cotton cropping frequency, tillage practices, seeding rate, and planting date on disease development and cotton yield.
About the speaker:
Dr. Austin Hagan is a Professor of Plant Pathology with an extension/research appointment in the Department of Entomology and Plant Pathology at Auburn University. He is also this year’s Friends of Southern IPM – Implementer award.
Dr. Hagan was named as an Auburn University Alumni Professor in 2001. His extension responsibilities include the diagnosis, monitoring, and development of disease and nematode control strategies for peanut, cotton, cereal, grain, and forage crops as well as amenity turf and ornamentals as well as serving as the Agronomy Team Leader.
How to join:
Registration URL: https://attendee.gotowebinar.com/register/6765684652965002242
Webinar ID: 988-800-315
Pre-registration is not required.