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

  • Nozzles for spraying herbicides

    Residual herbicides - carryover and behaviour in dry conditions

    8 June 2018

    The term 'residual' applies to a number of herbicides that have a long lasting activity in the soil. These herbicides are often applied directly to the soil prior to planting crops, pre-emergent.

  • A subclover and barleygrass pasture that has been spray-topped on the right hand side

    Effect of spray-topping on pasture legumes

    28 July 2014

    Spray-topping is a very effective method for managing annual grass seed set in pastures.

  • A lupin crop at the 80% leaf drop stage ideal for a crop-topping application

    Crop-topping pulse crops

    28 July 2014

    'Crop-topping' is the late application of herbicides to prevent weed seed-set.

  • Windmill grass in fallow

    Windmill grass

    23 May 2012

    Windmill grass (Chloris truncata) is a native species and is the tenth most common summer weed species in the Western Australian wheatbelt.

  • Annual ryegrass

    Annual ryegrass

    6 October 2011

    Annual ryegrass (Lolium rigidum) is one of the most serious and costly weeds of annual winter cropping systems in southern Australia.

  • Summer fallow spray

    Herbicides

    18 January 2011

    Herbicides play a vital role in integrated weed management programs.

  • Lesser loosestrife in flower

    Loosestrife - plant toxin affecting sheep and cattle

    12 November 2014

    Hyssop loosestrife (Lythrum hyssopifolia) is a widely distributed weed in the south west of Western Australia.

  • Salsola (prickly saltwort, rolypoly)

    Improving control of summer weeds

    11 February 2015

    Summer weeds can rob subsequent crops of soil nitrogen and stored soil water. They can also reduce crop emergence by causing physical and/or chemical interference at seeding time.

  • Boom spray

    Herbicide application

    18 January 2011

    Herbicides can be applied by a variety of means including boom sprayers, aerial spraying, misters, blanket wipers, rope wick applicators, weed seekers and back-pack sprayers.

  • Spray grazing - for broadleaf weed control in pastures

    12 May 2015

    Options for control of winter broad leaved weeds, in pastures, is a common inquiry. A fairly reliable method is spray grazing.

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