Mechanical, physical and cultural

Mechanical, physical and cultural control of pests, weeds and diseases (pests) are an integral part of a successful Integrated Pest Management plan.

Cultural controls are practices that reduce pest establishment, reproduction, dispersal, and survival. For example, crop rotation - replacing a susceptible crop with a less susceptible crop; and changing irrigation practices - less watering can reduce root disease and weeds.

Mechanical and physical controls kill a pest directly or make the environment unsuitable for it. For example, traps - for pest animals and insects; mulches - for weed management; steam sterilization - for soil disease management; or barriers - such as screens or fences to keep animals and insects out.

The Department of Agriculture and Food, Western Australia:

  • works with landholders and grower/community/biosecurity groups on control.
  • provides diagnostic services and information on prevention, management and treatment.
  • provides biosecurity measures to prevent introduction, and to eradicate or manage current pests.

If you need advice on pests please search our website or contact our Pest and Disease Information Service (PaDIS).


  • 31 March 2016

    This management strategy provides an opportunity to control weed seed set in the pasture and during harvest.

  • 8 April 2016

    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.

  • 25 October 2016

    The Weed Seed Wizard is a computer simulation tool that helps you understand and manage weed seedbanks on your farm.

  • 26 August 2016

    Stripe rust (Puccinia striiformis f. sp. tritici) and leaf rust (Puccinia triticina) can be a significant threat to wheat crops in Western Australia in some seasons.

  • 1 September 2016

    Barley leaf disease management options supported by the latest research findings are shown here.

  • 8 February 2016

    Control methods for variegated thistle (Silybum marianum) a declared pest in Western Australia.

  • 19 February 2016

    Control methods for athel pine (Tamarix aphylla) a declared pest in Western Australia.

  • 18 January 2017

    Powdery mildew is a fungal leaf disease that reduces yield and grain quality in susceptible wheat varieties.

  • 23 February 2016

    Control methods for gamba grass (Andropogon gayanus) a declared pest in Western Australia.

  • 22 February 2016

    Control methods for lesser jack (Emex spinosa) a declared pest in Western Australia.


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