Weeds are a significant threat to crop production due to 1) competitive interactions that limit yield potential, 2) physical interference that reduces harvest efficiency, and 3) serving as an alternate host for pests and pathogens. The evolution of herbicide resistant weeds (in particular marestail/horseweed/Canada fleabane, Palmer amaranth, waterhemp) further complicates weed control efforts by limiting the utility of commonly applied chemical tools. This talk will focuses on the current state of herbicide resistance in NY and the future of chemical weed control. Novel weed management strategies, such as harvest weed seed control (HWSC) and electrical weeding were discussed and recent research updates were provided. Best management practices for suppressing unwanted vegetation, including combine and equipment clean-out to limit seed spread, were also presented.

The Field Crop Weed Identification and Control Series was comprised of 6 webinars. For more information on each webinar and links to their recordings, visit the Cornell Field Crops video resources page.

Please note: NYS DEC and CCA credits were only available to attendees of the live meeting.