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In an integrated weed management program, control of weeds should occur in the fallow, pre-sowing, early post-emergent and in pasture phases.
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.
In-crop weed competition causes losses costing around $1 billion per annum for Western Australia.
Wheatbelt farmers are reminded to keep up paddock searches for the declared pest skeleton weed throughout late summer and autumn.
Preventing weed seed set provides an opportunity to control weed seed set in the pasture, late fallow, late stubble and in-crop phases.
This management strategy provides an opportunity to control weed seed set in the pasture and during harvest.
Drones have been taking to Wheatbelt skies in a bid to improve surveillance and control of a key agricultural pest plant, skeleton weed.
‘Risk-aware’ growers can implement strategies to reduce and avoid unnecessary introduction and spread of weeds.
Oats are more competitive with weeds than most other crops but weed control is still critical, particularly in hay crops as weeds can cause downgrading or rejection of export hay.
The most accurate way to estimate the weed population of a paddock is to count the number of plants in an area of known size at a number of locations.