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
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.
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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.
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.
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