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The term 'residual' applies to a number of herbicides that have a long lasting activity in the soil. These herbicides are often applied directly to the soil prior to planting crops, pre-emergent.
In 2021 the Department is conducting over 300 research trials across the state from Kununurra in the north to Esperance in the south.
The Transforming Regional Biosecurity Response forums held in October 2016 brought together community, industry and government to develop a collaborative approach to
Introducing new plants to an area can have positive and negative effects on the environment, economy and community.
The Pest and Disease Information Service (PaDIS) provides advisory and identification services on animal and plant pests, weeds and diseases that impact Western Australia's agriculture and food ind
Hyssop loosestrife (Lythrum hyssopifolia) is a widely distributed weed in the south west of Western Australia.
Summer weeds can rob subsequent crops of soil nitrogen and stored soil water. They can also reduce crop emergence by causing physical and/or chemical interfence at seeding time.
Options for control of winter broad leaved weeds, in pastures, is a common inquiry. A fairly reliable method is spray grazing.
Spray-topping is a very effective method for managing annual grass seed set in pastures.
Spray-topping or pasture topping is the application of a sub-lethal rate of herbicide when grasses are coming into head and flowering.