Plants must have been inspected no more than 3 days before shipment. Any materials infested with plant pests or not accompanied by a valid certificate may be destroyed or ordered removed from the state. Regulated Materials Hemlock seedlings and nursery stock, logs, lumber with bark, uncomposted chips with bark and uncomposted bark. Restrictions All regulated articles originating from or held in an area under quarantine are prohibited entry into Michigan unless treated with a method approved by the Director of Agriculture. Regulated articles from non-quarantined areas must be accompanied by a state phytosanitary certificate or certificate of quarantine compliance.
Additional restrictions apply for hemlock wood products with bark.
Nursery stock transported through quarantined areas must be safeguarded from infestation.