Spongy Moth Quarantine: Information for Businesses

​​​​​​The spongy moth (formerly known as gypsy moth) quarantine requires businesses to take measures to assure that their products are not carrying gypsy moth egg masses or other life stages to new, non-quarantined areas. 

Products Requiring Inspection and Certification​

  • Logs, posts, pulpwood, bark and bark products

  • Nursery stock

  • Christmas trees

  • Firewood for commercial sale

  • Mobile homes and associated items

Required Documentation 

Products will need one of the following, depending on the situation:​

  • Plant Protection and Quarantine Form 540 

  • PPQ Form 530 (limited permit)

  • Signed "accurate statement" (for logs, pulpwood and wood chips)

  • PPQ Form 527 (for nursery stock)

  • Rubber stamp certificate (for nursery stock)

  • Qualified certified applicator document (for mobile homes and outdoor articles)

Compliance Agreements

If businesses ship regulated articles out of quarantined areas occasionally, a state or federal inspector will inspect and certify individual shipments. Businesses that regularly ship large quantities of regulated articles out of quarantine areas need compliance agreements, an official document that specifies the conditions to be followed for growing, handling or moving regulated articles.  

For compliance agreements covering logs, pulpwood and wood chips, the business prepares an "accurate statement" to accompany individual shipments. The statement includes a certifying statement, the type of regulated article, the amount or number of articles in the shipment, and the signature of the preparer.

Mobile Homes

For interstate movement of mobile homes from quarantined areas, a pest control operator completes the qualified certified applicator document after inspecting and treating for gypsy moth. The operator must be certified by the state of Wisconsin or USDA.


The Wisconsin Department of Agriculture, Trade and Consumer Protection certifies firewood distributors after approving a process to remove pests. Get details.

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