May 14, 2020
Michigan renews labels on chlorothalonil products

After severe foliar disease outbreaks in recent years, potato growers continue to intensively manage their crops to prevent future epidemics.

Growers rely heavily on chlorothalonil products for managing foliar diseases, including early blight and late blight. Rotation of these fungicides in a management program also helps to mitigate pathogen resistance development while offering broad spectrum disease control.

In Michigan, 24(c) special local needs (SLN) labels are often necessary to ensure protection for the duration of the long growing season. To facilitate access to these products, Echo 720 and Echo 90DF SLN labels were recently renewed. Four chlorothalonil products are now registered for long- or full-season use in potato:

Please contact MSU Potato and Sugar Beet Pathology or MDARD Pesticide Registration section at 517-284-5656 for more information.

— Jaime Wilbur, assistant professor, Department of Plant, Soil and Microbial Sciences & Michigan State University Extension

75 Applewood Dr. Ste. A
P.O. Box 128
Sparta, MI 49345


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