Alabama growers will be given an update on dealing with two increasingly noxious weeds during a day-long session scheduled Wednesday, Dec. 11, in Calhoun Community College’s Aerospace Building, located north of Decatur.

The meeting will begin at 8 a.m. and end at 3 p.m. Lunch will be provided.

The update will serve as a comprehensive overview of the current spread of glyphosate-resistant pigweed and horseweed, two noxious weeds that threaten farm profitability throughout the Southeast, and will acquaint growers with the strategies and practices that should be adopted to control their spread.

Charles Burmester, an Alabama Extension agronomist who is planning and organizing the event, says the morning session will focus on the general issue of weed resistance.

Larry Steckel, an Extension weed specialist and University of Tennessee associate professor, will discuss the ways growers in neighboring Tennessee have adapted to weed resistance.

Following Stecklel’s remarks, Scott McElroy, an Auburn University associate professor of turfgrass and weed science, will discuss current research into resistant horseweed in Alabama.

John Lowry, product manager at Bayer Cropscience, will follow with a discussion about ways to maintain Liberty herbicide in weed control programs.

Spray nozzle selection will also be a major focus of the morning session.

Spray nozzle selection is not only a concern in terms of cost effectiveness, but it is also considered a critical environmental safeguard, according to Burmester.