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Emergency measures to manage Xylella fastidiosa within Carya spp. imported as seed for sowing

Effective from 18 May 2022

As advised through the BICON Alert issued on 16 May 2022, the Department of Agriculture, Water and the Environment (the department) advised that new biosecurity emergency measures will be implemented to manage the newly identified risk of seed transmission of the plant pathogenic bacterium, Xylella fastidiosa through Carya spp. seed for sowing.

Phase 1 of the new biosecurity seed measures will commence on 20 May 2022, and the following requirements will apply:

  • an import permit is required to import the following seed species imported for sowing purposes:

Carya alba

Carya aquatica

Carya buckleyi

Carya buckleyi var. villosa

Carya cordiformis

Carya glabra

Carya illinoensis

Carya illinoinensis

Carya laciniosa

Carya oliviformis

Carya ovata

Carya pallida

Carya pecan

Carya texana

Carya tomentosa

Hicoria pallida

Hicorius glabra var. villosa

Hicorius laciniosa

Hicorius pecan

Hicorius villosa

Juglans cordiformis

Juglans glabra

Juglans illinoinensis

Juglans laciniosa

Juglans oliviformis

Juglans pecan

  • Importers may initiate an import permit application, through the ‘Apply for an import permit’ button located in the import conditions of this BICON Case.

  • To manage the risk of Xylella, imported seed must be grown and disease screened for a minimum of 12 months, at the Australian Government post-entry quarantine (PEQ) facility at Mickleham, Victoria. Before release from biosecurity control, the plants must be tested and found free from Xylella species.

  • All other import conditions will continue to apply, including mandatory phosphine or cold treatment to mitigate the risk of insect pests.

The above requirements will apply to all synonyms and sub-ordinate taxa of affected species.

Next steps:

  • The department will continue to monitor new evidence and assess the need to broaden Xylella risk management measures to additional seed or nut pathways.
  • Any additional measures will be notified to affected stakeholders.
  • Keep updated by subscribing to relevant BICON cases, using these instructions.

Who does this alert affect:
Importers (and their customs brokers) of seed species (listed above) imported for sowing and department staff.

Further information:
Enquiries can be directed to 1800 900 090 or via email at (please title the subject line of the email with ‘Xylella emergency measures – Plant T2’).

This Alert applies to the following Cases: