Midseason Corn Disease Update

Damon L. Smith, Extension Field Crops Pathologist, University of Wisconsin-Madison The Wisconsin Field Crops Pathology crew has scouted corn from the southern portion of Wisconsin, to as far north as Spooner. Overall, disease levels are low. We have run into northern corn leaf blight (NCLB) in fields in the southern and central portions of the […]

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In-Season Corn Disease Management Decisions – 2017

Damon L. Smith, Extension Field Crops Pathologist, University of Wisconsin-Madison Tasseling has begun on field corn in the southern region of Wisconsin. With this, comes many questions about applying fungicide to control disease and preserve yield. What diseases are out there? What disease(s) should I focus on in-season? When should I spray? What should I […]

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Wisconsin Late-Season Corn Disease Update

Damon L. Smith, Extension Field Crops Pathologist, University of Wisconsin-Madison NCLB and Anthracnose Stalk Rot As corn silage harvest has begun and the corn grain crop is finishing, there have been some disease issues of note in Wisconsin. Northern corn leaf blight (NCLB) activity has picked up quickly over the last several weeks. This is […]

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Wisconsin Corn Disease Update – July 27, 2016

Damon Smith, Extension Field Crops Pathologist, University of Wisconsin-Madison Northern Corn Leaf Blight Over the last week concerns have been increasing over corn diseases as we are at the critical time to make fungicide application decisions. See my previous post about the early onset of northern corn leaf blight (NCLB) in Wisconsin in 2016 by […]

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Wisconsin Northern Corn Leaf Blight Update – June 29, 2016

Damon L. Smith, Extension Field Crops Pathologist, University of Wisconsin-Madison Since the first 2016 confirmation of northern corn leaf blight (NCLB) in Wisconsin on June 16, we have received additional corn samples from other areas of the state in my laboratory and also in the University of Wisconsin Plant Disease Diagnostic Clinic. All confirmations have […]

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