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

  • The Department of Agriculture and Food is asking the community to look out for and report signs of citrus gall wasp.

    Citrus gall wasp in Western Australia

    2 July 2014

    Citrus gall wasp (Bruchophagus fellis) is a pest of citrus trees. Discovered in the suburb of Eden Hill in 2013 it is now an established pest in Perth.

  • Two treated rows of vines in a block heavily infested with six-spotted mite demonstrate the damage potential of this mite

    Six-spotted mite - a pest of avocados and grapevines

    18 March 2014

    Six-spotted mite can defoliate avocado trees and grapevines in the lower south-west of Western Australia.

  • Greenhouse thrips

    Thrips in citrus

    7 October 2013

    Thrips (Thysanoptera) are small, slender, soft-bodied insects, just visible to the naked eye.

  • 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

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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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