Twisted whorls and yellow leafs
ICM News
Corn producers might see yellowing leaves above the canopy. The symptom is not unusual in fast-growing corn; leaves should unfurl and turn turn green within a few days.
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Corn producers might see yellowing leaves above the canopy. The symptom is not unusual in fast-growing corn; leaves should unfurl and turn turn green within a few days.
By Roger Elmore, Department of Agronomy
Yellow leaves wave above V5 to V8 corn canopies in northern and central Iowa this week. These sun-starved leaves freshly emerged from twisted whorls will turn green soon after they begin intercepting sunlight.
Potential causes are numerous: rapid growth coupled with a wide range of temperatures, hail, strong winds or an application of a herbicide, insecticide or fungicide, etc.