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

  • Boom spray applying chemical over pasture paddock

    Oats: weeds and integrated weed management

    28 November 2013

    Oats are more competitive with weeds than most other crops but weed control is still critical, particularly in hay crops as weeds can cause downgrading or rejection of export hay.

  • An eye level picture of a green oat crop with pannicles fully emerged. The foreground is focussed on pannicles.

    Oats: essentials

    1 November 2013

    Oats in Western Australia are grown for grain, hay, grazing or silage. Each year between 250 000 and 350 000 hectares are sown for grain production, and 113 000 hectares for hay production.

  • Affected plants are stunted with few tillers.

    Diagnosing cereal cyst nematode

    4 December 2013

    A soil-borne pest affecting roots of cereal crops, cereal cyst nematode (CCN) can cause substantial yield losses, particularly in continuous cereal crops.

  • At head emergence, each grain is replaced by brown to black powdery spores

    Diagnosing smut in oats

    22 June 2015

    Loose smut (Ustilago avenae) and covered smut (Ustilago hordei) of oats are both externally seed- borne diseases with similar symptoms which are difficult to distinguish in the fi

  • Oat paddock showing red tinge of rust infection

    Oats: leaf diseases

    8 November 2013

    Major leaf diseases of oats are stem rust, leaf rust, barley yellow dwarf virus and septoria avenae blotch; their severity changes with seasons.

  • Affected plants stunted with stiff, rolled leaves, which are sometimes darker than those of healthy plants.

    Diagnosing rhizoctonia root rot in cereals

    4 December 2013

    A widespread root disease caused by a soil-borne fungus and generating yield losses of 1-5% in Western Australia each year.

  • Root lesion and burrowing nematodes: diagnosis and management

    10 December 2013

    Nematodes can feed on root tissues of a wide range of plant species and lead to root damage which can result in significant crop yield loss.

  • 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.

  • Oat leaves displaying water soaked appearance with red-brown longitudinal stripes typical of stripe blight

    Diagnosing stripe blight in oats

    22 June 2015

    There are two types of bacterial disease which infect oat foliage; halo (Pseudomonas syringae pv. coronafaciens) and stripe (Pseudomonas syringae pv. striafaciens) blight.

  • Straw or brown colour spots surrounded by a yellow water-soaked halo than may resemble septoria

    Diagnosing halo blight in oats

    19 June 2015

    There are two types of bacterial disease which infect oat foliage; halo blight (Pseudomonas syringae pv. coronafaciens) and stripe blight (Pseudomonas syringae pv.

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