Additional Special Local Needs labels available for chlorothalonil use on potato

Echo 720 and Echo 90DF 24(c) registration completed for use on potato in Michigan in 2018. Labels available here.

Potato field
Photo by Jaime Willbur, MSU

As potato crops continue to mature, we are looking ahead to disease management. After severe foliar disease outbreaks in recent years, many growers intensively manage their crops to prevent future epidemics. Potato growers rely heavily on chlorothalonil products for managing foliar diseases, including early blight and late blight, which continue to be an annual concern. Rotation of these fungicides in a management program also helps to mitigate pathogen resistance development while offering broad spectrum disease control.

24(c) Special Local Needs (SLN) labels are often necessary to ensure protection for the duration of the long growing season here in Michigan. Two chlorothalonil products, Bravo Weather Stik and Bravo Zn (ADAMA), are currently undergoing 24(c) re-registration through the Michigan Department of Agriculture and Rural Development (MDARD). This year, however, growers everywhere are facing a chlorothalonil supply shortage. Obtaining sufficient amounts of chlorothalonil for disease management has necessitated the purchase of additional products, such as Echo 720 and Echo 90DF (Sipcam Agro USA, Inc.). This year in Michigan, Echo products have been registered for extended use in long-season potatoes to help alleviate some of the limitations of this shortage.

2018 24(c) SLN labels for Echo 720 and Echo 90DF

Echo 720 label Echo 90DF label
Download Echo 720 label
EPA SLN No. MI-180004
Download Echo 90DF label
EPA SLN No. MI-180003

Please visit the Michigan State University Potato Disease or MDARD websites for more information.

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