Washed ware potato policy review: draft pest categorisation

Page last updated: Tuesday, 31 January 2017 - 4:21pm

Please note: This content may be out of date and is currently under review.

The department is reviewing its policy in regards to the import of washed ware potatoes from other Australian states and territories.

As part of the process, the Plant Biosecurity Policy group prepared a draft pest categorisation of pests and diseases associated with potatoes (Solanum tuberosum).

The consultation period for this document closed on 30 January 2017.

DAFWA will consider all stakeholder submissions and incorporate relevant information into the draft policy review.

A policy review to consider the risks associated with the importation of washed ware potatoes from other Australian states and territories was initiated on 22 February 2016.

The policy review will follow a pest risk analysis process to determine the biosecurity risks associated with importing washed ware potatoes, and provide the scientific justification for any recommended phytosanitary measures.

The pest categorisation is the first step of the process, and identifies pests that:

  • are absent from Western Australia
  • are associated with the washed ware potato pathway
  • have potential to establish in Western Australia
  • would be of economic concern should they establish in Western Australia.

The Plant Biosecurity Policy group assessed 430 organisms associated with potato production in Australia. From this list of potential pests, 5 invertebrates and 31 pathogens met the above criteria to satisfy the definition of a quarantine pest according to the International Plant Protection Convention:

‘A pest of potential economic importance to the area endangered thereby and not yet present there, or present but not widely distributed and being officially controlled.’

These quarantine pests will undergo further assessment in the draft policy review to estimate the biosecurity risk they pose to Western Australia, and any necessary import conditions required to provide an appropriate level of protection for the state.

The draft policy review will also be released for consultation, providing the opportunity for stakeholders to comment and draw attention to any gaps, assumptions or errors in the scientific and technical data.

Quarantine pests identified as associated with imported washed ware potatoes:

Scientific name

Common name



Cheiroplatys latipes (Guérin-Méneville, 1831)

potato scarab

Hapatesus (Hapatesus) hirtus Candèze, 1863

potato wireworm

Rhizoglyphus robini Claparède, 1868

bulb mite
Rhopaea magnicornis Blackburn, 1888 rhopaea canegrub

Sericesthis geminata Boisduval, 1835

pruinose scarab



Alternaria protenta E.G. Simmons, 1986

early blight

Boeremia foveata (Foister) Aveskamp, Gruyter & Verkley, 2010


Carlavirus Potato virus M

Potato virus M (PVM)

Cylindrocarpon obtusisporum (Cooke & Harkn.) Wollenw., 1916

black-foot (grapevine)

Cylindrocladium clavatum Hodges & L.C. May, 1972


Dickeya zeae Samson et al., 2005

bacterial soft rot

Ditylenchus dipsaci (Kühn 1857) Filip'ev, 1936

stem nematode
Fusarium flocciferum Corda, 1831 dry rot
Fusarium oxysporum f. sp. vasinfectum W.C. Snyder & H.N. Hansen, 1940 dry rot

Fusarium poae (Peck) Wollenw., 191

dry rot

Globodera rostochiensis Wollenweber, 1923

potato cyst nematodes (PCN)
Helicobasidium purpureum (Tul.) Pat., 1885 root rot (vegetables)
Monographella cucumerina (Lindf.) Arx, 1984 microdochium blight (cucurbits)
Nucleorhabdovirus Eggplant mottled dwarf virus Eggplant mottled dwarf virus (EMDV)
Phacidiopycnis tuberivora (Güssow & W.R. Foster) B. Sutton, 1980 dry, corky stem-end rot

Phytophthora infestans (Mont.) de Bary, 1876

late blight
Potato spindle tuber viroid  Potato spindle tuber viroid (PSTVd)
Potexvirus Potato aucuba mosaic virus Potato aucuba mosaic virus (PAMV)
Potyvirus Potato virus A Potato virus A (PVA)
Potyvirus Potato virus Y  biological strains D and N, and phylogenetic group NTN Potato virus Y (PVY)
Pratylenchus goodeyi Sher & Allen, 1953

root lesion nematode

Pratylenchus jordanensis Hashim, 1983

root lesion nematode

Pratylenchus loosi Loof, 1960 root lesion nematode

Pratylenchus pratensis (de Man, 1880) Filip'jev, 1936

root lesion nematode
Pseudomonas marginalis pv. marginalis (Brown 1918) Stevens, 1925 soft rot

Pythiogeton ramosum Minden, 1916

soft rot
Pythium deliense Meurs, 1934 watery wound rot or shell rot
Ralstonia solanacearum (Smith 1896) Yabuuchi et al., 1996 bacterial wilt

Sarocladium strictum (W. Gams) Summerell, 2011

black bundle disease (corn)

Verticillium albo-atrum Reinke & Berthold, 1879 Verticillium wilt

Verticillium dahliae Kleb., 1913 (VCGs not present)

Verticillium wilt

Stakeholder registration

In addition to the departmental website, DAFWA uses a stakeholder register for distributing policy information to relevant parties.

To register to become a stakeholder and receive information via email for the washed ware potato policy review please click here to fill in the registration form.

Contact information

Plant Biosecurity Policy