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
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Upcoming Events
Chainsaw Safety & Forestry BMP's
June 13, 2025
Belmont, NY
Perfect for beginners or experienced users needing a refresher. We'll cover safety features and basic maintenance of the modern saw and learn kickback prevention techniques. Participants will be able to try on various PPE and learn ergonomic practices. Interested participants will learn to safely start up, throttle up, and turn off a saw. You may bring our own saw if you choose, there will be no cutting in this class.
FAMACHA Workshop at Alfred State College
June 14, 2025 : FAMACHA Workshop at Alfred State College
Alfred, NY
Join Cornell Cooperative Extension for a morning of classroom learning, hands-on FAMACHA and 5 Point Check practice, and a pasture walk at Alfred State College's teaching farm to learn about putting IPM to work on pasture using evasive grazing techniques. An exam will be provided, and students passing the exam will receive program certification, including a FAMACHA Card.
Fecal Egg Count Mobile Workshop at Alfred State College
June 17, 2025 : Fecal Egg Count Mobile Workshop at Alfred State College
Alfred, NY
This mobile workshop will teach you what you need to know to perform fecal egg counts and understand the results of fecal egg count reduction tests at home. While focused on testing sheep and goats, this event is applicable to all ruminants and camelids.