Research Finds Multiple Herbicide-Resistant Marestail is Present in New York
Joshua Putman, Field Crops and Forage Specialist
Southwest New York Dairy, Livestock and Field Crops Program
Thirty populations of marestail (horseweed) were collected in the fall of 2020 and are being screened for resistance to commonly used herbicides. Of the 30 collected, 27 appear to be resistant to glyphosate (Roundup) and 28 populations appear to be resistant to cloransulam herbicide, an ALS-inhibitor. This indicates that we have multiple-resistance in NY. It is also suspected that 4 of these 30 samples may be resistant to paraquat (Gramoxone) herbicide. The screening efforts will continue to evaluate the effect of products like 2,4-D and dicamba, Liberty, and PPO-inhibiting herbicides like Reflex and Sharpen.
Upcoming Events
WEBINAR - Automated Milking Systems Efficiency: Balancing Focus on Individual Cows and System Optimization
May 8, 2024
Please join Cornell the SWNY team and MSU Extension for our talk with Dr. Pablo Silva BoloƱa on improving efficiency of Automated milking systems by focusing on milking settings for individual and group success.
Broiler Field Day at Sunny Cove Farm
June 6, 2024
Alfred Station, NY
Join us for a field day to explore broiler production, processing, and finances. Meghan Snyder of Sunny Cove Farm will be our host. She raises small batches of organic broilers, processing them on-farm under the 1,000 bird exemption.
Stockmanship and Stewardship 2024
October 25, 2024
Hamburg, NY
Save the date!! The event is one of 4 across the US and is a two-day educational experience featuring low-stress cattle handling demonstrations, Beef Quality Assurance educational sessions, facility design sessions, and industry updates.
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