Weeds

Weeds pose a serious risk for primary producers as they can impact on market access and agricultural production.

In 2006/07, each Western Australian agricultural business spent an average of $29 376 ($341 million total) on weed control (Australian Bureau of Statistics).

Weed control is a shared responsibility between landholders, grower groups, biosecurity groups and the Department of Primary Industries and Regional Development.

To protect WA’s agriculture, the department:

  • works with landholders, grower groups, community groups and biosecurity groups
  • regulates weeds under the Biosecurity and Agriculture Management Act 2007
  • provides a weed identification service
  • provides a predictive simulation tool called weed seed wizard
  • provides information on weed control, crop weeds, regulated/declared plants and herbicides
  • contributes to social science through weedwatcher.

For advice on weeds 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

  • In an integrated weed management program, control of weeds should occur in the fallow, pre-sowing, early post-emergent and in pasture phases.

  • 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

  • Integrated weed management (IWM) is a system for managing weeds over the long term, and is particularly useful for managing and minimising herbicide resistance.

  • Arrowhead (Sagittaria montevidensis) is a declared pest in Western Australia (WA).

  • Testing for herbicide susceptibility allows you to determine what herbicide options are still available to control weeds on your farm.

  • African thistle (Berkheya rigida) is a pest in Western Australia (WA). This article describes the nature of the plant.

  • This page provides information about three Industry Funding Schemes addressing pest and disease threats relevant to the grains/seed/hay, sheep/goat and cattle industries.

  • The opuntioid cacti (except for Austrocylindropuntia vestitaCylindropuntia californica

  • Opuntia species (except O.

  • Cylindropuntia species (exept C. californica) are Declared Pests in Western Australia.

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