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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 2020 the Department is conducting over 300 Grains Research trials across the state from Kununurra in the north to Esperance in the south.
This project aims to determine the spread of emerging summer weeds and deliver new knowledge on the biology and management of these emerging summer and winter weeds, with an overall aim of increasi
The viability of annual ryegrass seed can be reduced substantially by desiccation, pre-harvest spraying or swathing of canola depending on the product and timing.
Testing for herbicide susceptibility allows you to determine what herbicide options are still available to control weeds on your farm.
An 11 year study showed that narrow row spacing and harvest weed seed destruction (that is, residue burning each autumn) reduced annual ryegrass seed production.
‘Risk-aware’ growers can implement strategies to reduce and avoid unnecessary introduction and spread of weeds.
One-off soil inversion results in the complete burial of the water repellent topsoil in a layer typically at a depth of 15–35cm, and brings to the surface a layer of wettable subsoil.
Western Australia has seen major changes to the agronomic system, including a drying climate, more intensive cropping rotations and the widespread adoption of no-till.
Every grain grower has seen how well weeds grow when they have a blocked seeding tube creating extra-wide row spacing.