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.

Articles

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

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

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

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

  • 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.

  • 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

  • Candidatus Liberibacter solanacearum is an exotic pest to Australia. It can affect both solanaceous and apiaceous crops.

  • Potato virus Y (PVY) is an aphid-borne virus that causes yield losses and tuber quality defects in commercial potato crops.

  • Dickeya dianthicola is a serious bacterium that can cause tuber soft rot and blackleg in potatoes, and can also affect some ornamental varieties, chicory and artichoke.

  • Soft rot can cause heavy losses in stored potatoes if not properly managed, creating a perception of poor quality in export seed potato markets.