New Soil Rule: WA Updates Apple Maggot Quarantine

Oregon Department of Agriculture sent this bulletin at 06/18/2020 09:06 AM PDT

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New Soil Rule: Washington Updates Apple Maggot Quarantine

Soil from quarantined areas will require a phytosanitary certificate beginning in July 2020

Apple

Greetings Nursery Program Subscribers,

 

Effective July 11, 2020, certain soils and growing mediums are regulated as part of the WA apple maggot quarantine. This means that soil meeting the circumstances outlined below cannot be transported from an apple maggot quarantine area (i.e. Oregon) to a pest-free area in eastern Washington.  Under the revised rules, plants with soil that originate from a quarantined area must have a phytosanitary certificate verifying the following: 

Host Plants (Apple, crabapple, hawthorn, cherry, pear, plum, prune, and quince)  

  • Have not produced fruit and were not located in the drip line of host plants that have fruited, or
  • Originated in an area where apple maggot is not considered established based on official trapping surveys, or
  • Had soil or growing medium treated with an appropriate pesticide treatment just prior to shipping.

Non-host plants grown within the drip line of fruiting host plants in the quarantine area

  • Originated in an area where apple maggot is not considered established based on official  trapping surveys, or
  • Had soil or growing medium treated with an appropriate pesticide treatment just prior to shipping.
  • As a reminder, moving fruit attached to host plants is already prohibited under the apple maggot quarantine. 

The following remain unregulated, even under the new rule change: 

  • Bare root plants (host and non-host) – host plants cannot have fruit attached
  • Plants (host and non-host) originating from the WSDA pest free area
  • Non-host plants that were not grown in the drip line of fruiting host plants

Shipping into Washington?

Nurseries in quarantine states (California, Oregon, Idaho, ect.), who wish to ship plants in soil into the protected Washington pest-free area, must obtain a phyto certificate from their state department of agriculture detailing how the plants meet the quarantine requirements. Notification of impending shipments must be sent in advance to WSDA by email or fax, and include a phyto certificate copy. For frequent shippers, WSDA may establish a compliance agreement with your state, in lieu of phyto certificates for each load.

 

For more information on Apple Maggot:

WSDA Apple Maggot Quarantine Information Page

 

Documents Related to Rulemaking:

https://agr.wa.gov/services/rulemaking/wac16-470-apple-maggot-quarantine-soil-111417.

 

 

Questions? Email: Nursery@oda.state.or.us