Shielded spraying and zero row spacings are helping a Victorian farmer keep on top of the weed burden.
A survey has revealed 43 per cent of Australian grain growers are currently practising harvest weed seed control (HWSC) and this is set to double within the next five years.
Dry season agronomy is difficult. In affected areas there is a reasonable chance that pre-emergent herbicides applied at or before seeding will not work as well as they usually would, even when it does rain.
The lack of autumn rains in areas like the Eyre Peninsula in South Australia and no follow-up rain for dry sown crops in some Western Australian districts means there will be many crops with variable establishment and variable growth rates, making weed control more challenging.
The Harrington Seed Destructor, chaff carts and narrow windrow burn techniques are all equally as effective as one another at reducing the weed seed burden.
Growers should seriously consider the value of pasture and fodder crops to regain control of herbicide resistant weeds.
Satellite images are a useful tool for growers and agronomists, providing a very objective means of identifying weedy areas and measuring the response to management tactics.
The spread of an invasive agricultural and environmental weed has been prevented in Western Australia by an observant bushwalker, who noticed Noogoora burr in the Joondalup Nature Reserve in northern Perth.
The recent investment by Western Australian mixed farmers, Ben and Emily Webb, in a chaff cart to provide non-herbicide weed control also provides them with chaff heaps that are a valuable feed source over summer.
Spray application rate and technique are critical when managing ‘hard-to-kill’ weed species.