Early-Season Corn Disease: Northern Corn Leaf Blight
Joshua Putman, Field Crops and Forage Specialist
Southwest New York Dairy, Livestock and Field Crops Program
In 2019, northern corn leaf blight (NCLB) appeared throughout the Southwest New York region. In general, NCLB is more of an issue in fields with a history of continuous corn production however, this year, the environment has been conducive for the infection to occur in first year corn fields as well. Environmental conditions of 65-85F, sporadic rain events, and humidity can result in an NCLB infection. Early NCLB symptoms appear as long, narrow, tan lesions that form on the leaf surface of a corn plant. As the disease progresses, the lesions become longer, more oblong, or "cigar-shaped" and can appear grayish in color. These lesions can range from 1-8 inches long with multiple lesions forming dense, irregular areas of dead tissue on the corn leaves. Cornell University Field Crops Plant Pathologist, Dr. Gary Bergstrom, recommends we scout our fields now for early disease detection. For more information visit Purdue University Extension or contact Field Crops Specialist, Josh Putman.
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Upcoming Events
Quality Wool Workshop
March 21, 2026
Alfred, NY
Please join us for a day of workshops and hands-on activities for shepherds, shearers, fiber artists, and interested community members -- learn how to produce quality fleece, process wool at-home, access markets for your wool, help your local shepherds, and strengthen our regional wool supply chain! Hosted by Cornell Cooperative Extension Allegany County in collaboration with Allegany Fresh Transport, Northeast Fiber Exchange (NEFX), Southern Tier Fiber Arts Guild, and Crooked Lane Farm. The workshop will be held at the Union University Church Community Center in Alfred, NY on Saturday, March 21st from 10 AM to 4 PM.
NY Beef Producers Assoc. & Chautauqua County Beef Producers Assoc. Region 2 Annual Meeting
March 24, 2026
Ellicottville, NY
Join us for an engaging and informative round table discussion focused on practical, performance driven cattle nutrition. This panel brings together industry leaders with hands on experience in dairy and beef strategies, ration formulation, ingredient sourcing, and on farm management.
All are welcome.
Membership is these beef producer groups is not required.
NY Beef Producers Association Region 4 Annual Meeting
April 4, 2026
Alfred, NY
Open to all interested beef and dairy producers!
Presentations:
- Tube Feeding 101
- Early Calf Care Tips
- Handling Livestock Safely
Membership in the beef producer association is not required to attend. New memberships and renewals will be accepted at the meeting; drawing will be held for 1 free membership or renewal.
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