The Western IPM Center funded the Kochia Work Group in 2019 to bring together researchers from the public and private sector to develop a coordinated strategy for integrated kochia management. An Executive Committee formed to guide the strategy, and sub-committees met to discuss priorities for biology and ecology, herbicide resistance, integrated weed management, and education and social science. A 2-day meeting was held on October 16-17, 2019, in Denver, CO. This page contains scribe notes from the meeting, PDF versions of the presentations, and links to video recordings of the talks.
Summary of top priorities from participant surveys:
- Basic seed biology – 1) coordinated, multi-state, long term seed bank dynamics with ongoing monitoring of seed viability; 2) how the environment affects seed biology, such as crop vs non-crop; improved seed storage for reference lines; research on stimulating synchronized germination
- Herbicide resistance – 1) standard resistance testing protocols and rating systems, including standard reference lines (resistant and susceptible) available for all to use; 2) molecular markers for in-lab and in-field diagnostics of HR
- Integrated Weed Management – 1) new non-chemical tools such as research across crops for effectiveness of HWSC on kochia (using cropping systems to manage seed production); 2) modeling research to build a kochia management decision support tool;
- Education and Social Science – 1) an online Kochia Action Committee platform with coordinated communication material; 2) longitudinal survey of management practices for scope of problem and barriers, changes in management practices and impact over time; 3) initial trials of area wide management groups
New!! Video from Steve Shirtliffe and Eric Johnson at the University of Saskatchewan, showing drone imagery and remote sensing of kochia infestations:
Participant Survey of Priorities from Group Discussions:
This project was funded in part by the USDA National Institute of Food and Agriculture through the Western Integrated Pest Management Center, grant number 2018-70006-28881.