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.
Field Crops
Dairy
Business
Livestock
Grains
Upcoming Events
Fecal Egg Count Mobile Workshop - Ellicottville
November 5, 2025 : Fecal Egg Count Mobile Workshop - Ellicottville
Ellicottville, NY
This workshop will explain why regularly testing fecal egg counts can help you with understanding your animals' parasite loads and dewormer resistance. Attendees have the opportunity to prepare and evaluate fresh fecal samples under the microscope and practice interpretations.
Animal Mortality Composting Demo
November 6, 2025 : Animal Mortality Composting Demo
Brant, NY
Join experts from Cornell's Waste Management Institute, Local Soil and Water Conservation Districts, Pro-Dairy, CCE, and WNY Crop Management as we evaluate a newly constructed livestock compost pile at a local dairy farm. Attendees will be able to learn how to properly design a pad and pile, evaluate pile success, and understand common pitfalls to proper composting.
Optimizing the Economic Return of Pasture-Raised Slow-Growth and Conventional Broilers - Webinar
November 13, 2025 : Optimizing the Economic Return of Pasture-Raised Slow-Growth and Conventional Broilers - Webinar
Over the past three years, Cornell Cooperative Extension has worked with nearly 40 small farmers across NYS to gather information on the true costs of raising broilers (meat chickens) on pasture. This presentation is a summary of the findings of this research project.
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