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powdery mildew

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Catalogue: GRDC Updates (West)
Mention of a trade name or company in this publication does not imply endorsement of any product or company by the Department of Agriculture and Food, Western Australia... Overall, 60-70 per cent of flour is used in traditional flat breads, 20-25 per cent of flour is used in western style breads and 5-10 per cent is used in cakes and biscuits... In summary, canola varieties sown 2-3 weeks earlier than normal (early to mid April) can be grazed in winter prior to bud elongation (usually providing 600-800 dse grazing days/ha) and recover with no impact on yield or oil...
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Catalogue: NVT Online Papers
Rusts The cold winter, dry spring and widespread use of fungicides when needed kept foliar pathogens at generally low levels during 2012... With a change of seasonal conditions in 2013 the risk of, and damage from, stripe rust could be much greater so growers are urged to remain vigilant with in-furrow treatments or early fungicide sprays to control this disease... Should growers decide to apply early protection for stripe rust they can choose cheaper seed treatments containing flutriafol or triadimenol or longer acting treatments based on fluquinconazole or fertiliser- applied fungicides...
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Catalogue: GRDC Updates
Epidemics of yellow spot develop when susceptible varieties are sown into infected stubble where frequent and extended periods of wet weather prevail at temperatures between 10 and 30 C. Optimum temperatures are between 15 and 25 C... Given that timing is the most important factor in fungicidal control, the onus is on growers and agronomists to monitor crops closely... In 2010, the disease was observed causing a leaf blight in barley and in durum wheat in the field...
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Catalogue: GRDC Factsheets
The best means for controlling powdery mildew is by avoiding more susceptible wheat and barley varieties... if powdery mildew is allowed to develop in crops, there is a serious risk of fungicide resistance developing as well as loss of resistance in current and future varieties... Spraying needs to be done early with full rates of fungicide...
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Catalogue: GRDC Factsheets
The best means for controlling powdery mildew is by avoiding more susceptible wheat and barley varieties... if powdery mildew is allowed to develop in crops, there is a serious risk of fungicide resistance developing as well as loss of resistance in current and future varieties... Spraying needs to be done early with full rates of fungicide...
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Catalogue: GRDC Factsheets
The best means for controlling powdery mildew is by avoiding more susceptible wheat and barley varieties... if powdery mildew is allowed to develop in crops, there is a serious risk of fungicide resistance developing as well as loss of resistance in current and future varieties... Spraying needs to be done early with full rates of fungicide...
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Catalogue: GRDC Factsheets
Key poinTs A single gene mutation in populations of the powdery mildew pathogen has caused disease control failure by some triazole fungicides... P H O T O : K i T H S i r i J A y A S e n A Use integrated disease management to reduce disease pressure and reliance on fungicides... Apply effective fungicides as soon as the disease becomes apparent; early control is essential to maximise fungicide efficacy...
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Catalogue: GRDC Media
Help available in fight against barley powdery mildew in WA.. This is a key message outlined in a new Grains Research and Development Corporation (GRDC) resource aimed at helping Western Australian growers minimise losses from powdery mildew in barley in 2012... CAPTION: Barley powdery mildew is a damaging fungal disease caused by Blumeria graminis f. sp hordei (BGH), which is specific to barley and barley grass...
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Catalogue: GRDC Final Reports
Fungicide use in the Australian grains industry has risen significantly in the past decade... A sufficient level of genetic resistance needs to be maintained, particularly in crops attacked by medium and high risk pathogens where the diversity of fungicides available is low... The chemical industry is being encouraged to introduce one or more of the eight modes of action that control mildew overseas or on grapes in Australia...
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Catalogue: GRDC Media
Monitoring of all Western Australian barley crops for powdery mildew disease and careful fungicidal management including the use of seed dressings will reduce the risk of yield losses this season, with commonly grown varieties found to have an increased susceptibility to the disease... Recent rainfall could favour the development of powdery mildew, which has already been observed in barley regrowth at a number of sites across barley growing regions in WA's central and southern grain growing regions... Photo Caption: GRDC-supported research conducted by the ACNFP has found that commonly grown barley varieties have an increased susceptibility to the disease...
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