Liberty-resistant Palmer amaranth confirmed in Arkansas
Joshua Putman, Field Crops and Forage Specialist
Southwest New York Dairy, Livestock and Field Crops Program
Researchers from the University of Arkansas have identified Palmer amaranth populations that survived several applications of Liberty (glufosinate) Herbicide. Seed was collected and tested in the greenhouse showing a resistance of 16 times the typical field use rate. These findings represent the first documented case of a broadleaf resistance to Liberty Herbicide in the world. Liberty link traits are an additional tool to help corn and soybean producers control problematic weeds like Palmer amaranth, waterhemp, and marestail. Palmer amaranth is now present in 3 counties in New York State, one of which is in Southwest NY. Seed was collected from these populations in the fall of 2020 and are being tested for resistance to our commonly used herbicides. Stay tuned as we conduct research on these NY populations. Full article from the University of Arkansas can be found here.
Field Crops
Dairy
Business
Livestock
Grains
Upcoming Events
Cover Crop & Soil Health Field Day
April 24, 2025
Freeville, NY
Join us for a field day featuring cutting edge cover crop and soil health research and resources.
Crops, Cows & Critters - Southwest New York Dairy, Livestock & Field Crops Newsletter Sponsorship
December 19, 2025
Our two forms of publications feature research-based and timely information from our four specialists, listed to the right, along with local event notifications and Cornell University outreach. This information is provided to participants who range from dairy, livestock, and field crops producers to agricultural suppliers and consultants.
Weekly Email Update: Shared with 550+ households who have signed up with our program.
Monthly Paper Mailer: To reach our stakeholders and farmers who lack internet access, we send out a monthly mailer where your company's logo and contact information would be featured with a mailing list of 320+ households.
If you sponsor our weekly and monthly publications you reach approximately 870 households.
Visit our website to view our newsletters!
Announcements
No announcements at this time.