By Ann Staudt
A retired weed management specialist with Iowa State University Extension and Outreach and professor emeritus at Iowa State will discuss the past four decades of herbicide use during an Iowa Learning Farms webinar June 30 at noon.
Bob Hartzler, in his presentation “Weed Management in Iowa: 40 Years of Progress?” will discuss the herbicidal-based approach to weed management that has been used over the past 40 years.
He will discuss the changes in weeds and the tools used to control them over the course of his career. He noted that since the mid-1970s, weed management has relied on the continuous introduction of new chemicals to account for weed adaptation.
“The pace of weed evolution is greater than that of herbicide discovery,” said Hartzler. “We cannot continue down the same path currently used to manage weeds.”
Participants are encouraged to ask questions of the presenters. People from all backgrounds and areas of interest are encouraged to join.
Source : iastate.edu