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Plant Pest Quarantines
MDARD helps safeguard Michigan agriculture and natural resources against the introduction, establishment, and spread of harmful pests through plant pest quarantines. Plant pest quarantines are legal documents issued by MDARD limiting the movement of specific plant material within, into, or out of the state of Michigan.
Interior plant pest quarantines restrict the movement of specific plant material within the state of Michigan. Exterior plant pest quarantines restrict the movement of specific plant material into the state of Michigan from other states where a plant pest is known to exist.
Suspected quarantine violations can be reported by emailing MDARD-NurseryCE@Michigan.gov or by calling 800-292-3939.
Plant pest quarantines in Michigan:
- Balsam Woolly Adelgid Exterior Quarantine: List of Infested Areas - updated 4/27/2023
- Hemlock Woolly Adelgid Exterior Quarantine: List of Infested Areas - updated 4/27/2023
MDARD also provides a summary of Michigan quarantine regulations relating to nursery stock.
White Pine Blister Rust Act 313 of 1929 requires a permit from MDARD to plant red currants, white currants & gooseberries the control area. A map of the control area and approved varieties are listed here. Planting of black currant is prohibited statewide except under permit. MDARD will only approve resistant varieties for permits. To request a permit, please fill out this form.