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

  • trial site image

    Plant research trials map 2024-25

    22 January 2018

    In 2024, the department is conducting more than 250 research trials across the state for grains research and development, climate resilience, pastures, and horticulture systems. 

  • Crown rot in wheat appears as scattered white heads

    Crop diseases: forecasts and management

    11 December 2013

    Information is provided here to assist management of diseases and viruses that occur in broadacre crops grown in Western Australia - cereals (wheat, barley, oats and triticale), pulses (field pea,

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    Aphid feeding damage to cereal crops

    14 February 2011

    Adult and nymph aphids suck sap with large populations limiting grain yield and size, especially winter and spring infestations.

  • Small conical snail on canola seedling

    Will anything repel conical snails?

    30 March 2020

    No treatment in this trial effectively repelled small conical snails.

    No treatment caused significant mortality of conical snails over 21 days when compared to the nil treatment.

  • null

    Russian wheat aphid: production pest

    7 October 2013

    Russian wheat aphid (Diuraphis noxia), is a pest of barley and wheat crops.

  • Cockchafer damage cereal roots

    Cockchafer damage to broadacre crops

    14 October 2013

    Cockchafers belonging to the genus Heteronyx are typically not regarded as a pest of agriculture. However, two have been seen as occasional pests, with H.

  • MyCrop how to video series

    31 August 2016

    This series of video tutorials has been produced to provide advice about the best ways to monitor and sample crops to diagnose and overcome constraints to crop production.

  • Root disease under intensive cereal production systems

    10 December 2013

    Diseases that occur underground can be difficult to detect and diagnose but they must be identified correctly to enable appropriate control measures to be implemented.

  • Cereal crops - insect threshold levels

    9 April 2014
  • 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.

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