Pest insects

Pest insects can have adverse and damaging impacts on agricultural production and market access, the natural environment, and our lifestyle. Pest insects may cause problems by damaging crops and food production, parasitising livestock, or being a nuisance and health hazard to humans.

Western Australia is free from some of the world's major pest insects. Biosecurity measures on your property are vital in preventing the spread of insects.

The Department of Primary Industries and Regional Development provides:

  • biosecurity/quarantine measures at the WA border to prevent the entry of pest insects
  • where relevant post border biosecurity measures
  • advice on widespread pest insects present in the state.

For advice on pest insects 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.

Articles

  • This article describes the main distinguishing features between Australian plague locusts (Chortoicetes terminifera) and other common grasshoppers/locusts.

  • Cutworms are plump, smooth caterpillars, of several moth species. They feed on all crop and pasture plants, damaging them near the ground. The caterpillars hide under the soil or litter by day.

  • Ground pearls are closely related to scale insects and can be serious pests of sugarcane and recreational turf.

  • The European wasp is considered one of the worst wasps in the world - harmful to people, our outdoor lifestyles and to our horticultural and agricultural industries.

  • Between 24 February and 3 April 2020 the Department of Primary Industries and Regional Development (DPIRD) is providing Western Australians with an opportunity to help look for invasive ants in Wes

  • Portuguese millipedes (Ommatoiulus moreletii) belong to a group of animals called Myriapoda (meaning many-legged), which also includes several native Australian millipedes and centipedes.

  • Invertebrate pests can cause extensive damage to truffles.

  • Two documents on Australian truffle orchard pest and diseases are available to download.

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

  • Early identification of important invasive and native problematic ants within Western Australia is critical to achieving successful control and preventing invasive ant species from gaining a footho

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