Herbicide Resistance Update on Marestail
Joshua Putman, Field Crops and Forage Specialist
Southwest New York Dairy, Livestock and Field Crops Program
Horticulture Weed Scientist, Dr. Lynn Sosnoskie, has been conducting some interesting research over the past few months. Extension specialists from all around the state collected and submitted weed specimens last fall for herbicide-resistance testing to better understand the best management practices for these weeds in field crops. We now have preliminary results from the first screening on horseweed aka marestail. Thirty populations have been tested so far and, it appears, that 27 out of 30 have resistance to the field-use rate of glyphosate (Roundup). Testing will continue with different chemistries so that we can provide growers with proper control measures. Join us next week for the Field Crop Series where we will cover topics on weeds, diseases, and insects in further detail.
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Upcoming Events
Cornell Organic Field Crops & Dairy Conference
March 6, 2026
Waterloo, NY
Farmers, researchers, educators, and agricultural service providers from across the Northeast are invited to the 2026 Cornell Organic Field Crops & Dairy Conference, held Friday, March 6, 2026, from 8:00 a.m. to 4:30 p.m. at the Lux Hotel & Conference Center in Waterloo, N.Y.
Co-hosted by New York Soil Health and Cornell CALS, the annual conference brings together leaders in organic grain, dairy, and livestock systems to share practical tools, new research, and farmer-tested strategies to support resilient and profitable organic production.
NY Pork Producers - 2026 Producer Summit & Annual Meeting
March 13 - March 14, 2026
Hamilton, NY
Join NYPP for the 2026 Producer Summit, where producers of all sizes and production styles will explore marketing, branding, selling pork, and current consumer trends through practical sessions designed to help build demand, connect with customers, and add value to their operations.
Mid Atlantic Grain Conference
March 15 - March 16, 2026
We're excited to share that the 2026 Mid‐Atlantic Grain Fair & Grain Conference is coming March 15-16, 2026 in Pennsylvania! This two-day event brings together farmers, millers, bakers, brewers, distillers, researchers, and grain enthusiasts to learn, connect, and celebrate local grains. These events will be offered at two seperate locations.
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