Diseases

Diseases have a detrimental effect on plants and animals and impact on market access and agricultural production. Diseases include micro-organisms, disease agents (bacteria, fungi and viruses), infectious agents, parasites and genetic disorders.

Western Australia is free from some of the world's major agricultural and livestock diseases. Biosecurity measures on your property are vital in preventing the spread of diseases.

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.

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Articles

  • Fusarium pseudograminearum on a agar plate

    Tolerance of oats to crown rot in Western Australia 2016 trial report

    29 August 2016

    Determining the relative yield loss (tolerance) of commonly grown and newly released oat varieties to crown rot pathogens Fusarium pseudograminearum and F. culmorum.

  • Rhizoctonia patch in the South Stirlings

    Mapping rhizoctonia across paddocks 2016 trial report

    29 August 2016

    Developing a process to identify which clusters of patches of rhioctonia in a paddock are economic to treat.

  • A number of carrots showing the symptoms of severe root damage caused by carrot virus Y

    Carrot virus Y

    5 May 2014

    Carrot virus Y has been found in carrot crops throughout Australia.

  • Russian wheat aphid

    Podcasts for the grains industry

    22 June 2016

    These podcasts are created to provide information to farmers and agronomists about relevant issues happening in crops in Western Australia.

  • Cotyledon infection

    Monitoring establishing crops for leaf diseases

    9 April 2014

    Crops should be monitored for leaf diseases in order to undertake appropriate control measures when first detected and to alter management strategies in subsequent crops that will minimise the impa

  • Alternaria blight on waxflower

    Foliar diseases of waxflower

    9 January 2014

    Waxflower is susceptible to a range of foliar diseases. The main problems which occur in commercial plantations and their control are outlined here.

  • Yellow-orange pustules are arranged in stripes along the leaf veins.

    Diagnosing stripe rust of wheat

    4 December 2013

    Stripe rust is a fungal foliar disease specific to wheat that can cause up to 60% yield loss and reduce grain quality, particularly when susceptible varieties are infected early.

     

  • Irregular, elongated often interveinal leaf blotches with a narrow yellow margin

    Diagnosing septoria tritici of wheat

    4 December 2013

    A fungal foliar disease caused by Mycosphaerella graminicola (synonym Septoria tritici).

  • Small, circular to oval pustules with orange to light brown dusty spores on upper surface of leaves.

    Diagnosing leaf rust of wheat

    4 December 2013

    Leaf rust (Puccinia triticina) is a fungal leaf disease specific to wheat that can pose a significant threat to the yield and quality of Western Australian wheat crops in some seasons, cau

  • Long grey-black streaks with powdery black spores (that rub off easily) on leaves, leaf sheaths and occasionally stems.

    Diagnosing flag smut of wheat

    4 December 2013

    A fungal disease of wheat that occurs throughout the Western Australian wheatbelt. Yield of affected plants can be reduced but incidence of this disease is low.

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