The
Wisconsin Department of Agriculture, Trade and Consumer Protection (DATCP) has
imposed an external quarantine on items that could carry Phytophthora
ramorum, which causes sudden oak death and ramorum blight (leaf or stem
symptoms) on susceptible plant species. An external quarantine restricts import
of some items from areas known to have P. ramorum. DATCP
regulations coincide with the federal quarantine and regulations for P.
ramorum imposed by the U.S. Department of Agriculture Animal and Plant
Health Inspection Service (APHIS).
Areas Covered by the Quarantine
The quarantine applies to certain counties of California and Oregon. All applicable counties are identified in the Code of Federal Regulations (CFR).
Items Covered by the Quarantine
- Cultures and live material of P. ramorum
- Nursery stock
and unprocessed wood, plants and plant parts (including bark chips, firewood,
logs, lumber, mulch, wreaths, garlands and greenery) from taxa such as (but not
limited to) Quercus spp. (oaks), Rhododendron spp. (all species,
hybrids and cultivars, including azaleas), and Viburnum spp. (all species,
hybrids, and cultivars).
- Soil and
potted media
- Any other
item that a pest control official determines poses a risk of spreading P.
ramorum
Exceptions
Regulated items can be imported into Wisconsin, if accompanied by a certificate signed by a pest control official in the state of origin who has inspected the items and certified that the items:
- Originate from non-infested premises and have not been exposed to P. ramorum,
or
- Were free of P. ramorum at the time of inspection, or
- Have been effectively treated to destroy P. ramorum, or
- Were
produced, processed, stored, handled, or used under conditions that would
prevent transmission of P. ramorum.
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