Viruses & virus-like

There are many types of viruses, viroids, prions and syndromes that have the potential to affect animal and plant health in Western Australia. Viruses pose a serious risk for primary producers, as they can impact on market access and agricultural production.

Western Australia is free from some of the world's major agricultural and livestock diseases. Good biosecurity measures on your property are vital for preventing the spread of animal and plant diseases. Viruses can be spread by insect vectors. There are no pesticides that can be used to kill viruses, however they can be reduced and controlled by controlling these insect vectors with pesticides.

The Department of Primary Industries and Regional Development provides:

  • biosecurity/quarantine measures at the WA border to prevent the entry of plant and animal diseases.
  • post border biosecurity measures for harmful animal and plant diseases.
  • advice on widespread diseases present in the state.

For advice on animal and plant 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

  • Turnip mosaic virus, cauliflower mosaic virus and beet western yellows virus occasionally cause significant economic loss in vegetable brassica crops such as cauliflower, broccoli, cabbage, Chinese

  • Leaves turn yellow from the tips and may have yellow stripes extending towards base.

    A cereal disease caused by two similar viruses (barley yellow dwarf virus and cereal yellow dwarf virus). These diseases are spread by several colonising aphid species.

  • Plants infected as seedlings are spindly with multiple tillers

    Wheat streak mosaic virus (WSMV) is a seed and mite-borne virus that infects cereals (including wheat and barley) and grasses.

  • Mild chlorosis and mosaic vein clearings: PSbMV

    It can be difficult to distinguish plant disease symptoms caused by viruses in pea plants, as viral foliage symptoms are often similar to those caused by nutritional deficiencies, herbicide damage

  • Stunted plant with thickened leaves and reddened margins

    Beet western yellows virus (BWYV) that has been renamed Turnip Yellows virus (TuYV) is an aphid-borne virus that causes yield and quality losses in canola.  It also infects other crop and pasture s

  • Varietal symptoms vary but leaf mottling and puckering is common

    An aphid-borne viral disease in canola that has the potential to cause significant yield loss with early infection, but is uncommon.

     

  • Wrinkled leaves and characteristic ringspots

    An aphid borne viral disease in canola that has the potential to cause significant yield loss with early infection, but rarely occurs in WA.

  •  Potato spindle tuber viroid can reduce crop yields in potatoes and tomatoes. Use certified disease-free planting material and destroy infected plant material.

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