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Iron deficiency chlorosis “blowing up” in west-central Minnesota soybeans
Soybean growers in west-central Minnesota are seeing high levels of iron deficiency chlorosis (IDC).
University of Minnesota Extension soybean specialist Seth Naeve says environmental and weather conditions dictate the intensity of the disease.
“We have quite a severe IDC blowup in west-central Minnesota. It’s more severe in a lot of areas than we’ve seen in the last couple of years.”
He calls IDC an interesting beast.
“It kind of comes in and moves around. It moves within fields. (there’s) year to year variability. Even within a season we’ve had fields that were yellow, they greened up, it got warm, they got greened up, and then we had some cool, wet weather for a week or so and they got yellow again.”
Naeve tells Brownfield variety selection is option one, two, and three for managing IDC. The plant disorder is most commonly seen in areas of the Upper Midwest with heavy lime soils that aren’t drained well.
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