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.

  • Boom spray

    Factors affecting herbicide performance

    19 January 2011

    Herbicide performance can vary greatly depending on a number of factors. These can include compatibility of herbicides, water quality, sprayer decontamination and controlling stressed weeds.

  • 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.

  • 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.

  • Doublegee seedling

    Doublegee

    3 February 2011

    Doublegee or spiny emex is a significant weed in Western Australia. It is a vigorous annual herb with a strong tap root and a long, fleshy, hairless stem.

  • Herbicide resistance

    Herbicide resistance

    31 January 2011

    Herbicide resistance is the inherited ability of an individual plant to survive a herbicide application that would kill a normal population of the same species.

  • Canola paddock with weeds

    Managing weeds in emerging crops

    17 August 2017

    Following the extended dry conditions this autumn, weeds are now emerging and becoming a challenge for growers to manage in paddocks that may have patchy crops, crops with staggered emergence or no

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