You are here

rust outbreak

Categorised under:

Catalogue: Ground Cover
More than 20 Australian researchers, along with US and European scientists, have spent four years trying to understand what will happen to grain crops if carbon dioxide (CO2) levels rise by 50 per cent over the next 40 years... Six projects make use of Horsham's Australian Grains Free Air CO2 Enrichment (AGFACE) facility, where trial plots of wheat, field peas and canola are grown with the CO2 levels predicted to be in the atmosphere in 2050... We use the information to estimate the effects of different temperatures and rainfall, plus CO2 levels on crop yields...
Related categories:
Catalogue: GRDC Media
Grains industry recognises rust expert Colin Wellings.. The award was presented to Prof Wellings this week at the GRDC Adviser Update at Young, NSW, where he was addressing researchers, scientists, advisers, agronomists and growers on the latest developments in cereal diseases... During the period he has assumed research and advisory roles with the Australian Cereal Rust Control Program, working in partnership with the GRDC. Over the past 30 years, Prof Wellings has been responsible for Australia-wide monitoring of the stripe rust pathogen (strain identification), genetic studies of resistance in wheat to this pathogen, and assisting directly with disease control by providing breeding support to all wheat breeding groups in Australia...
Related categories:
Catalogue: Ground Cover
In Australia, more than 80 per cent of all stored grain is treated with phosphine, which means it is the chemical most in contact with insects, creating the greatest chance for insects to develop resistance... Two projects under the CRC for National Plant Biosecurity are looking at the genetics of insect resistance to phosphine to understand the development of resistance and to rapidly identify resistant insects... One of the greatest threats to emerge is the development of resistance to phosphine in the lesser grain borer (Rhyzopertha dominica), one of the most common pests of stored grain...
Related categories:
Catalogue: Ground Cover
Grain growers are being urged to start monitoring this year's emerging crops for rust and prepare a rust-management plan following early detections of severe stem rust in volunteer wheat crops in the southern region... "In developing a rust-management plan, growers should also revisit the susceptibility of the varieties they have selected to grow and tailor their action plan to the level of resistance present.".. "There is plenty of help available if growers are not sure how susceptible their varieties are or which is the best approach to take - check with your local agronomist, plant pathologist, your regional variety guide or visit the Rust Bust website ( www.rustbust.com.au ) or the National Variety Trials website ( www.nvtonline.com.au )...
Related categories:
Catalogue: Ground Cover
Grain growers are being urged to start monitoring this year's emerging crops for rust and prepare a rust-management plan following early detections of severe stem rust in volunteer wheat crops in the southern region... "In developing a rust-management plan, growers should also revisit the susceptibility of the varieties they have selected to grow and tailor their action plan to the level of resistance present.".. "There is plenty of help available if growers are not sure how susceptible their varieties are or which is the best approach to take - check with your local agronomist, plant pathologist, your regional variety guide or visit the Rust Bust website ( www.rustbust.com.au ) or the National Variety Trials website ( www.nvtonline.com.au )...
Related categories:
Catalogue: GRDC Media
Early rust samples analysed by the Cereal Rust Laboratory have sparked concerns that stripe rust, and possibly leaf rust, may hit for wheat crops across southern Queensland and northern and central western NSW this season... One sample from Marombi wheat at Dunedoo, NSW was infected with leaf rust, and a sample of stripe rust was taken from Tobruk triticale at Young, NSW," Dr Wellings said. ".. Selection of rust-resistant varieties , teamed with control of the green bridge of volunteer plants over summer and,strategic fungicide use are the three clear strategies we need growers to take on board," Dr Rainbow said. "..
Related categories:
Catalogue: GRDC Media
Remember APR when selecting varieties.. Varieties carrying APR genes are protected from rust during the post-seedling stage of crop development, typically between tillering and booting (growth stages 20-49)... PHOTO CAPTION: Northern region grain growers are being reminded to consider adult plant resistance (APR) to fungal diseases such as stem, stripe and leaf rust, when retaining seed this harvest for next year's crop...
Related categories:
Catalogue: GRDC Media
Varieties carrying APR genes are protected from rust during the post-seedling stage of crop development, typically between tillering and booting (growth stages 20-49)... Professor Robert Park, from the Australian Cereal Rust Control Program, said because the timing and effectiveness of APR varies from gene to gene, it varies from variety to variety depending upon which gene(s) are present... PHOTO CAPTION: Northern region grain growers are being reminded to consider adult plant resistance (APR) to fungal diseases such as stem, stripe and leaf rust, when retaining seed this harvest for next year's crop...
Related categories:
Catalogue: Ground Cover
Take care: rusts persist over winter.. Stem rust requires quite warm conditions and although samples of green bridge survival were reported from eastern Australia in late summer 2011, we can expect disease levels to be low if winter temperatures remain cool to cold... It will be important to monitor susceptible varieties and spray early to achieve adequate control...
Related categories:
Catalogue: GRDC Media
Cereal disease management planning critical this season Grain growers throughout the southern cropping region are being reminded of the critical need for cereal disease management planning this season... Growers need to know what to expect with the disease response of each variety of crop sown," said Dr Wellings, whose work is supported by the Grains Research and Development Corporation (GRDC). ".. The ultimate goal of the campaign is to encourage growers to phase out susceptible and very susceptible varieties from their rotation where possible but if these cultivars are grown, then farmers need a management plan ready in advance in case of a rust outbreak...
Related categories:

Pages