Regional and Seasonal content

Please note: This content may be out of date and is currently under review.

Spray-topping or pasture topping is the application of a sub-lethal rate of herbicide when grasses are coming into head and flowering.

Spray-topping is a very effective method for managing annual grass seed set in pastures.

'Crop-topping' is the late application of herbicides to prevent weed seed-set.

Expressions of interest for membership to the three Industry Funding Scheme (IFS) Management Committees and Review Panel are now closed.

The averaged annual direct cost of water erosion to dryland farming in Western Australia is estimated to be $10 million, but the costs are much higher in years of severe summer storms.

All livestock in Western Australia must be correctly identified according to species.

Rainfall in the South West Land Division, for April to June, is likely to be below average, based on a survey of 22 international models.

This page hosts the 2018 frost trial information, handy project resources and the frost severity maps (from August).

Frost occurs on clear nights in early spring when the air temperature drops to 2°C or less.

The Department of Primary Industries and Regional Development (DPIRD) plays a major role in addressing the impact of frost on WA growers through a combination of on-farm research and development ac

The Department of Primary Industries and Regional Development's (DPIRD) network of automatic weather stations and radars throughout the state provide timely, relevant and local weather data to assi

Rainfall to date graphs show the amount of rainfall accumulated from the start of the grain growing season and can be used as a tool in the seasonal decision-making process.

Plant available soil water graphs show the amount of soil water accumulated from the start of summer (1 November) through the grain growing season and can be used as a tool in the seasonal decision

The potential yield tool uses seasonal rainfall and decile finishes, calculated from historical data, to calculate the maximum wheat yield possible in the absence of any other constraints.

Western Australia's climate has changed over the last century, particularly over the last 50 years. Average temperature has risen about 1°C.

The extreme weather events tool uses data from DPIRD's extensive weather station network to map air temperatures, relative humidity, dew point, Delta T and wet bulb, either below or above a specifi

The climate of the south-west of Western Australia and the Western Australian Wheatbelt (termed together as the South West Land Division) is influenced by many global and local climate drivers.

Frost is difficult to manage. It has a significant economic and emotional impact on the whole community.

Many seasonal outlooks are available throughout the year for use in the South West Land Division (SWLD), which includes the Western Australian grainbelt.

Much of the Western Australia's wheatbelt has experienced a very dry 2018–2019 summer leaving very little stored moisture at present (DPIRD, May seasonal report 2019). Yield potential varies signif

  

Page last updated: Wednesday, 31 May 2017 - 5:05am