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PLNA e-News: Plants, Pests & Diseases

UPDATE: Thousand Cankers Disease Quarantine Expanded

Tuesday, August 5, 2014   (0 Comments)
Posted by: Gregg Robertson
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HARRISBURG, PA - The Pa. Department of Agriculture (PDA) has expanded the thousand cankers disease (TCD) quarantine to Chester County August 2, 2014. 
The quarantine area now covers Chester, Philadelphia, Bucks, Montgomery and Delaware Counties. 
Walnut trees, wood, walnut products and other regulated articles will be allowed to move without restrictions within the five counties. It may not move outside those counties without mitigation and/or certification from PDA. 


PDA is working with Penn State Extension to discuss TCD at the Landscape Update meetings in September at the following locations. Call the Extension office for the details and to register.
  • September 18 at the Delaware County Extension office, 20 Paper Mill Rd., Springfield, PA  19064 (meeting will be held in the Environmental Education Center)
  • September 23 at the Berks County Extension office, 1238 County Welfare Rd., Leesport, PA  19533 (meeting will be held in the auditorium)
  • September 25 at the Montgomery County Extension office, 1015 Bridge Road, Collegeville, PA  19426. (meeting will be held in the Maple Room).

Thousand Cankers Disease Regulations: What You Need To Know to Move Walnut Products

TCD Quarantine Counties: Bucks, Chester, Delaware, Montgomery, and Philadelphia

TCD External Quarantine: Arizona, California, Colorado, Idaho, Indiana, Maryland, Nevada, New Mexico, North Carolina, Ohio, Oregon, Tennessee, Utah, Virginia, and Washington. (Permit for Limited Movement required by PA Dept. of Agriculture)

TCD Quarantine against Pennsylvania: Kansas, Michigan, Missouri, Nebraska, Oklahoma, Illinois, Indiana, Minnesota, Tennessee, Virginia, West Virginia, Wisconsin (May require special permits prior to shipping from Pennsylvania with restrictions.)

International TCD Quarantine against Pennsylvania: South Korea

No Prohibitions or Changes for Movement of:

Nuts, nut meats, hulls;
Processed lumber (which is one hundred percent bark-free and kiln-dried with squared edges); and 
Finished wood products without bark, including walnut furniture, musical instruments, and other items derived from the genus Juglans;

There are Regulatory Restrictions on Movement of ALL other Walnut Plants or Products, including (but not limited to): 

Walnut Nursery Stock
Walnut Logs
All hardwood firewood
Ground hardwood mulch
Composted hardwood mulch
Trimmings from walnut trees

Regulated articles inside Pennsylvania's TCD Quarantine Counties:
Regulated articles cannot move from within the TCD-quarantined Counties to anywhere else without approval from the PA Department of Agriculture. Approval may require inspection, treatment, and/or a compliance agreement. 

Regulated articles may move between counties within the TCD-quarantined Counties.

PDA has issued the following documents for more detailed information:

Plain Language Explanation of TCD Quarantine
PDA Letter to Stakeholders
Map of TCD Quarantine Area
PDA TCD Press Release
TCD Revised Quarantine
PDA Website on TCD

For Additional Information:
Quarantine Questions: Dana Rhodes 717-772-5205
To report possible TCD 1-866-253-7189 or

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