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disease management

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Catalogue: GRDC Updates
For example, at Dubbo 407 mm of rain fell on 68 days (39 days >1.0mm) between 01 June and 30 November, compared with a long-term average of 282 mm on 43 days (34 days >1.0mm)... The pattern encouraged rapid vegetative growth of crops and was ideal for the build-up and spread of the major chickpea pathogens... Ascochyta blight (AB, caused by Ascochyta rabiei ), Botrytis grey mould (BGM, caused by Botrytis cinerea ), Phytophthora root rot (PRR, caused by Phytophthora medicaginis ) and Sclerotinia rot (caused by Sclerotinia sclerotiorum and Sclerotinia minor ) were widespread and severe in many crops...
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Catalogue: GRDC Updates
For example, at Trangie 386 mm of rain fell on 54 days (40 days >1.0mm) between 01 June and 30 November, compared with a long-term average of 225 mm on 41 days (28 days >1.0mm)... The pattern encouraged rapid vegetative growth of crops and was ideal for the build-up and spread of the major chickpea pathogens... Ascochyta blight (AB, caused by Ascochyta rabiei ), Botrytis grey mould (BGM, caused by Botrytis cinerea ), Phytophthora root rot (PRR, caused by Phytophthora medicaginis ) and Sclerotinia rot (caused by Sclerotinia sclerotiorum and Sclerotinia minor ) were widespread and severe in many crops...
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Catalogue: GRDC Media
Watch a video with FAR Australia's Nick Poole... Rust has taken a back seat as the primary disease for wheat in the high rainfall zone (HRZ) of south-eastern Australia with Septoria Tritici Blotch (STB) taking the reins as the biggest headache for growers over the last three seasons... "It has a much longer latent period (time between fungal spores infecting the crop and symptoms appearing), meaning you can't tell whether new tissue is infected since it takes longer for the disease to reveal itself in the crop," Mr Poole said. "..
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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
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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Catalogue: GRDC Updates
Implications of SFNB infection on barley production in Victoria is not understood as no studies into the epidemiology or control of the disease have been documented since its first detection in the early 1990s... The aim of the study was to establish the importance of SFNB to Victorian barley production and identify control strategies for its management... The study has shown that barley varieties with even partial resistance (seedling resistance) can provide control of SFNB...
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Catalogue: GRDC Media
Powdery mildew survey seeks SA barley grower input South Australian barley growers are being urged to help in the fight against fungicide resistance by participating in a survey assessing resistance in the damaging barley disease, powdery mildew... Australian Research Centre for Necrotrophic Fungal Pathogens (ACNFP) director and GRDC western panel deputy chairman Richard Oliver said the samples would reveal fungicide resistance patterns, and help breeders produce new barley varieties resistant to powdery mildew... Professor Oliver said growers could protect barley crops from powdery mildew and limit the spread of resistant powdery mildew strains by controlling barley volunteers, growing barley varieties resistant to the disease and using effective fungicides. "..
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Catalogue: GRDC Media
Leader of the Southern Pulse Agronomy project Dr Jason Brand says growers need to get the fundamentals for their faba beans right up front, such as row spacing, plant density and pest and disease management, to avoid any issues in the canopy later in the season... Growers wanting to avoid issues with canopy management in faba bean crops later this season should first get fundamental measures such as row spacing, plant density, inoculation and pest and disease management right earlier in the season... Dr Brand has been looking at novel ways of reducing the problem in the HRZ, including chemical and mechanical treatments, but says the key message for growers was still to focus on getting the important things right early in the growing season...
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Catalogue: GRDC Media
Leader of the Southern Pulse Agronomy project Dr Jason Brand says growers need to get the fundamentals for their faba beans right up front, such as row spacing, plant density and pest and disease management, to avoid any issues in the canopy later in the season... Growers wanting to avoid issues with canopy management in faba bean crops later this season should first get fundamental measures such as row spacing, plant density, inoculation and pest and disease management right earlier in the season... Dr Brand has been looking at novel ways of reducing the problem in the HRZ, including chemical and mechanical treatments, but says the key message for growers was still to focus on getting the important things right early in the growing season...
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