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.
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Upcoming Events
Dairy Feeder School
October 29, 2026 : Dairy Feeder School
Freedom, NY
- One day on-farm training for dairy farm feeders
- Offered in English and Spanish
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Tax 102: Tax planning and strategies for Farmers
November 4, 2026 : Tax 102: Tax planning and strategies for Farmers
This webinar follows the "Introduction to Income Taxes" webinar from September, going more into depth on topics including: understanding common tax concepts, tax strategies, long-term approaches to managing taxes, and more!
Labor Roadshow: Practical Workforce Strategies for Agricultural Professionals Across New York
November 30, 2026
December 21, 2026
The Agricultural Workforce Development Council of New York State (AWDC) will celebrate a decade of connecting and educating agricultural professionals when Labor Roadshow X returns this December with five in-person events and two webinars across New York State.
For nearly ten years, the Labor Roadshow has brought agricultural professionals together to learn, connect, and navigate the evolving challenges of agricultural labor. The 2026 event will continue that tradition with timely, expert-led discussions focused on the issues affecting farms and agricultural employers today—including labor law and compliance, employee engagement, retention, and workplace culture.
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