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Diuron (Karmex, Direx) injury
Eric Hanson, Horticulture
Injury is most likely if young or weak plants are treated with excessive rates. The first apparent symptom is a pale green color along the main veins of leaves. Eventually, brown areas develop between the main veins in the middle of leaves. These often do not extend to the leaf margins.
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Last Updated - 9/27/09