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

  • A young banana plant with yellowing leaves, a symptom of Panama disease.

    Panama disease in bananas: frequently asked questions

    3 April 2015

    Panama disease Tropical Race 4 (TR4) is considered one of the most destructive diseases of banana plants worldwide.

  • A young banana plant with yellowing leaves, a symptom of Panama disease.

    Panama disease: declared pest

    5 March 2015

    Panama disease Tropical Race 4 (TR4) is considered one of the most destructive diseases of banana plants worldwide. It is caused by the soil-borne fungus Fusarium oxysporum f. sp.

  • Cottony cushion scale on young citrus tree

    Citrus pests, diseases and disorders

    8 November 2013

    Western Australia has a low prevalence of citrus pests and diseases compared to most other countries.

  • Long tailed mealybug

    Mealybugs in citrus

    26 September 2013

    Mealybugs (family Pseudococcidae) are oval-shaped, segmented, soft-bodied insects covered with white, mealy wax. They are often found between touching fruit, under the calyx or in the 'navels' of o

  • Types of citrus with the blue sticker and WA birthmark symbol

    Citrus pests

    18 December 2013

    Find out more about the most common insect pests of citrus trees occurring in home gardens in Western Australia and their control using natural or low toxic chemical controls.

  • CLM larvae

    Citrus leafminer

    26 September 2013

    Citrus leafminer, Phyllocnistis citrella Stainton, is the only leafminer attacking citrus in Australia.

  • Citrus aphids on trunk

    Aphids in citrus

    7 October 2013

    Four species of aphids on citrus are recorded in Australia but only two occur in Western Australia, the brown/black citrus aphid Toxoptera citricidus (Kirkaldy) and spiraea aphid, Aphi

  • Leaf eating ladybird larvae grow up to 8mm long and are covered in branched spines. They feed only on the upper leaf tissue which results in a windowed appearance

    Leaf eating ladybirds: potato pest in Indonesia and Western Australia

    10 January 2014

    Leaf eating ladybirds are a relatively minor pest of potatoes in Indonesia and Western Australia, but should be monitored.

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    Dried Fruit Beetle (Carpophilus)-pest of stone fruit

    13 April 2015

    Carpophilus, also known as driedfruit beetles, are a worldwide pest of fruits, both pre- and post-harvest, and grains.

  • Brown garden snails on a citrus leaf

    Managing snails in citrus orchards

    1 October 2018

    Snails cause damage to citrus orchards by feeding on fruit and leaves. Snail management is a multi-step process that involves both cultural and chemical control.

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