Regulatory Plant Pests and Diseases

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Wisconsin has plant protection regulations in place known as quarantines to stop the introduction of invasive plant pests and diseases into the sta​te, and to prevent them from spreading within the state. In general, nursery stock and other plant products arriving in Wisconsin must have a certificate from plant health authorities in the state of origin verifying that the material is free of harmful plant pests and diseases. Importing invasive plant species also is generally prohibited.​ Click here to learn more about Wisconsin plant quarantines and other regulations.

To report a regulatory pest or disease that is not known to be present in Wisconsin, or to report one that has spread to a new area within the state, call the Pest Hotline at (866) 440-7523​ or email a photo and your location to

Plant Regulatory Programs​

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