Peel

Annual ryegrass (Lolium rigidum) is one of the most serious and costly weeds of annual winter cropping systems in southern Australia. Annual ryegrass is highly competitive and can compete with a crop as early as the two-leaf crop stage.

Silver grass is an annual grass occurring in both cropping and grazing regions across Australia. There are several species, the most common being Vulpia myuros and V. bromoides. These species commonly occur together.

Barley grass is a common name for Hordeum glaucum and H. leporinum. It is an annual species renowned for rapidly germinating in autumn to provide valuable stock feed soon after breaking rain.

Raised beds are a long-term option for waterlogged sites and increasing crop yield on target areas. The Department of Primary Industries and Regional Development recommends that raised beds are part of a whole-farm water and salinity management program.

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. Use a quadrant, which may be square or circular, to carry out weed plant counts.

Claying involves adding and incorporating clay-rich subsoil into water repellent topsoil to overcome the repellence.

Herbicides can be applied by a variety of means including boom sprayers, aerial spraying, misters, blanket wipers, rope wick applicators, weed seekers and back-pack sprayers.

Herbicides play a vital role in integrated weed management programs. Knowledge of the mechanisms and activity of herbicides will improve the impact and sustainability of herbicides as a weed management tactic.

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