Pests, weeds & diseases

Pests, weeds and diseases pose a serious risk for primary producers as they can impact on market access and agricultural production.

To reduce the impact of pests, weeds and diseases, the Department of Primary Industries and Regional Development:

  • works with landholders, grower groups, community groups and biosecurity groups.
  • provides diagnostic services and information on prevention, management and treatment.
  • provides biosecurity and quarantine measures to prevent introduction, and to eradicate or manage current pests.

For advice on pests, weeds and diseases search our website, the Western Australian Organism List or contact our Pest and Disease Information Service (PaDIS).

For diagnostic services, please contact our Diagnostic Laboratory Services.

See Also

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Articles

  • Dorsal view of a red over-wintering form of two-spotted spider mite (Tetranychus urticae) on a gerbera leaf

    Spider mite pests of Western Australian plants

    9 October 2013

    Mites of the Tetranychidae family (commonly known as spider mites) include some important pests of economic concern to agriculture and forestry.

  • Close up of white star potatoes on white background

    Potato seed certification

    20 November 2013

    DDLS Seed Testing and Certification is responsible for administering the industry seed potato production schemes in Western Australia.

  • PSTVd affects potato plant and tuber development

    Potato spindle tuber viroid: declared pest

    9 July 2014

    Potato spindle tuber viroid (PSTVd) is a declared pest in Western Australia. It can significantly reduce crop yields in potatoes and tomatoes.

  • Null

    Onion smut: declared pest

    20 December 2019

    Onion smut (Urocystis cepulae) is a disease of onions. This disease is absent from Western Australia.

  • Null

    Tomato yellow leaf curl virus: declared pest

    5 April 2019

    Tomato yellow leaf curl virus (TYLCV) is a very damaging virus disease of tomato crops in tropical and warm temperate regions of the world, causing losses of up to 100%.

  • Null

    Late blight of potato and tomato: declared pest

    4 April 2019

    Late blight (Phytophthora infestans) is considered the most devastating disease of potatoes worldwide and caused the Irish potato famine in the 1840s.

  • Null

    Bacterial wilt of potato: declared pest

    29 March 2019

    Bacterial wilt (Ralstonia solanacearum) is a serious disease of potatoes that can cause crop losses of more than 90%.

  • Null

    Potato Virus Y tuber necrosis strain: declared pest

    4 April 2019

    Potato virus Y tuber necrosis strain (PVYNTN) causes a serious disease of potatoes called potato tuber necrotic ringspot disease which results in dark unsightly rings on tubers.

  • Null

    Onion rust: declared pest

    11 April 2019

    Onion rust (Puccinia allii) is a disease of plants in the onion family, including onions, garlic, chives, spring onions and leeks.

  • Western Australian carrots

    Candidatus Liberibacter solanacearum

    8 May 2017

    Candidatus Liberibacter solanacearum is a bacterial plant pathogen that is exotic to Australia. Currently five haplotypes have been described: haplotypes A and B from solanaceous crops suc

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