As spring of 2016 approaches, producers across the Eastern Corn Belt will begin to put more thought towards their production plans and management decisions for the upcoming season. One challenge that has affected corn yields in our sales territory over the past few years is foliar disease, especially Northern Corn Leaf Blight. Anyone who attended one of our Winter Agronomy Meetings heard a discussion of what conditions promote diseases (Northern Corn Leaf Blight and Gray Leaf Spot) and possible management options. You might ask, “What are the important management options that will protect yield from leaf diseases?” Below are the answers to that question:
• Select Resistant Hybrids: One very effective way to protect yield potential is to plant varieties that have resistance to leaf disease. Many university publications, including this MSU fact sheet, generally recommend that fungicides are not required for hybrids with strong disease resistance.
• Crop Rotation: It is widely understood that crop rotation is one of the best management practices for mitigating problem diseases.… Continue readingRead More »