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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.
Introducing new plants to an area can have positive and negative effects on the environment, economy and community.
The Transforming Regional Biosecurity Response forums held in October 2016 brought together community, industry and government to develop a collaborative approach to
Four summer weed time of removal trials were implemented across the Western Australian wheatbelt in March 2017 following a widespread summer rainfall event.
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 interference at seeding time.
Brome grasses (Bromus spp.) are highly competitive weeds, most problematic in wheat crops.
Windmill grass (Chloris truncata) is a native species and is the tenth most common summer weed species in the Western Australian wheatbelt.
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
‘Risk-aware’ growers can implement strategies to reduce and avoid unnecessary introduction and spread of weeds.