Results from post-emergence corn herbicide study on waterhemp
Joshua Putman, Field Crops and Forage Specialist
Southwest New York Dairy, Livestock and Field Crops Program
A summary of 6 years of field research completed in southwestern Ontario Canada found that Callisto + Atrazine, Coverage + Atrazine, Shieldex + Atrazine and Acuron Flexi, applied postemergence in corn, controlled multiple-herbicide-resistant waterhemp 91-92%; Acuron provided the best control with 96%. *Provided by Dr. Peter Sikkema*
Field Crops
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Upcoming Events
Fecal Egg Count Mobile Workshop - Jamestown
October 30, 2025 : Fecal Egg Count Mobile Workshop - Jamestown
Jamestown, 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.
2025 Annual Cornell Sheep and Goat Symposium Day 1
October 31, 2025 : 2025 Annual Cornell Sheep and Goat Symposium Day 1
Join sheep and goat production experts for three days of informational lectures, hands-on experiences, and demonstrations around sheep and goat production and management. The symposium starts on Friday, October 31 and runs through Sunday, November 2, 2025.
2025 Annual Cornell Sheep and Goat Symposium Day 2
November 1, 2025 : 2025 Annual Cornell Sheep and Goat Symposium Day 2
Ithaca, NY
Join sheep and goat production experts for three days of informational lectures, hands-on experiences, and demonstrations around sheep and goat production and management. The symposium starts on Friday, October 31 and runs through Sunday, November 2, 2025.
Announcements
Herbicide Resistance Screening
We are screening weed species for herbicide resistance.Species we are looking for include, but aren't limited to:
- Tall Waterhemp
- Palmer Amaranth
- Marestail
- Redroot Pigweed
- Foxtails
- Common Lambsquarters
- Common Ragweed
Reach out to Katelyn Miller at 716-640-2047 or km753@cornell.edu for more information.