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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 )...
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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. "..
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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...
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Catalogue: GRDC Media
Leading plant pathologists Col Wellings (NSW DPI) and Hugh Wallwork (SARDI) will also be at the workshop to discuss with participants the regional agronomic issues of most importance... The small group workshop will cover issues including: cereal growth stages and spray decisions; the impact of environment and day degrees on crop and disease development; understanding where new and old fungicides fit; the development of cost-effective disease management plans; and management strategies for key cereal diseases... The workshop, supported by GRDC and the Rust Bust campaign, is locally sponsored by Bayer Crop Science...
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Catalogue: Ground Cover
A new cache of rust-resistance genes has been identified in durum wheat.. The new sources will increase diversity for rust resistance in modern varieties - By Dr Gio Braidotti.. Arthur Ernest Watkins may not have the posthumous name recognition of William Farrer but is belatedly leaving his mark on the world, thanks to a treasure trove of rust-resistance genes he left to wheat scientists and a modern world desperate to renew rust defences in wheat, especially against stem rust...
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Catalogue: Ground Cover
The amount of rust present on this sample means that it could be used to infect a differential set directly, reducing the time for pathotype determinations from six weeks to three weeks... The first report of wheat stripe rust for 2011 was made in early July from southern NSW, while oat crown rust and oat stem rust have been frequently observed since April in crop regrowth and weedy oat populations... The ammount of rust present on this sample menas hat it could be used to infect a differential set directly, reducing the time for pathtype determinations from six weeks to three weeks...
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Catalogue: Ground Cover
The application of commonly recommended management principles has eradicated a strain of grain-storage insects with strong phosphine resistance located on a Western Australian farm... It is believed to be the first time that elimination of on-farm grain-storage insects with strong phosphine resistance has been scientifically documented and confirmed in Australia and possibly the world... Hygiene treatments used at the Wubin farm to eradicate the resistant RFB population included: pressure washing inside empty silos, storage surrounds, handling equipment and machinery; the application of contact chemical insecticide to kill insects in grain residues at the base of silos and the removal of waste for burial; and treating clean, empty silos with diatomaceous earth protectant to prevent reinfestation...
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Catalogue: Ground Cover
The application of commonly recommended management principles has eradicated a strain of grain-storage insects with strong phosphine resistance located on a Western Australian farm... It is believed to be the first time that elimination of on-farm grain-storage insects with strong phosphine resistance has been scientifically documented and confirmed in Australia and possibly the world... Hygiene treatments used at the Wubin farm to eradicate the resistant RFB population included: pressure washing inside empty silos, storage surrounds, handling equipment and machinery; the application of contact chemical insecticide to kill insects in grain residues at the base of silos and the removal of waste for burial; and treating clean, empty silos with diatomaceous earth protectant to prevent reinfestation...
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