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rhizoctonia disease

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Catalogue: GRDC Media
Consider rhizoctonia seed treatments to boost cereal yields.. Daniel says the take home messages from the trials are that in-furrow banding of fungicide 2-3cm below the seed can provide protection to crop seminal roots and surface banding behind the press wheel can protect the crown roots... Daniel says there are some promising fungicide banding treatment options for rhizoctonia in the pipeline that performed well in the trials...
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Catalogue: GRDC Media
Consider rhizoctonia seed treatments to boost cereal yields.. Daniel says the take home messages from the trials are that in-furrow banding of fungicide 2-3cm below the seed can provide protection to crop seminal roots and surface banding behind the press wheel can protect the crown roots... Daniel says there are some promising fungicide banding treatment options for rhizoctonia in the pipeline that performed well in the trials...
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Catalogue: GRDC Factsheets
Inoculum levels in the medium rainfall zone of the western region have been increasing in the last few years... The disease is caused by Rhizoctonia solani AG8, a fungus that grows on crop residues and soil organic matter and is adapted to dry conditions and lower fertility soils... The fungus causes crop damage by pruning newly emerged roots (spear-tipped roots) which can occur from emergence to crop maturity...
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Catalogue: GRDC Factsheets
Inoculum levels in the medium rainfall zone of the western region have been increasing in the last few years... The disease is caused by Rhizoctonia solani AG8, a fungus that grows on crop residues and soil organic matter and is adapted to dry conditions and lower fertility soils... The fungus causes crop damage by pruning newly emerged roots (spear-tipped roots) which can occur from emergence to crop maturity...
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Catalogue: GRDC Factsheets
Yield losses in crops affected by bare patches can be over 50% and crops with uneven growth (Figure 1) may lose up to 20%... Figure 1: Above-ground symptoms of crop unevenness (main picture) are seen when Rhizoctonia damages crown roots, even when seminal roots (inset) escape the infection... Inoculum levels increase in cereal crops at all depths...
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Catalogue: GRDC Factsheets
Yield losses in crops affected by bare patches can be over 50% and crops with uneven growth (Figure 1) may lose up to 20%... Figure 1: Above-ground symptoms of crop unevenness (main picture) are seen when Rhizoctonia damages crown roots, even when seminal roots (inset) escape the infection... Inoculum levels increase in cereal crops at all depths...
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Catalogue: GRDC Final Reports
PEM bacteria are important as they are common, suppress multiple diseases, interact with other organisms to increase suppression and can be correlated with reduced disease in the field... Crop selection could be used to increase suppressive microbes and enhance disease suppression on-farm... In summary, the project increased our understanding of disease suppression and the organisms involved, identified potential biocontrol inoculants that can reduce disease in the field as seed coatings to provide in-season Rhizoctonia disease control, and identified a potential strategy using crop selection to increase naturally occurring disease suppression in the field to provide long-term control of soilborne fungal diseases...
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Catalogue: GRDC Media
The Grains Research and Development Corporation (GRDC) has produced the Rhizoctonia Fact Sheet - Management to minimise Rhizoctonia disease in cereals ... The fact sheet covers these and other key factors controlling the occurrence and severity of Rhizoctonia in detail, as well as information about the basic biology of the disease, symptoms and frequently asked questions... CAPTION: Rhizoctonia damages crops by pruning the root system, resulting in water and nutrient stress to the plant and characteristic 'bare patches' in paddocks...
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Catalogue: GRDC Research Summaries
Rhizoctonia bare patch disease remains an important but unpredictable disease for cereals in the southern Australian agricultural region... Management of natural disease suppressive ability of soils has been suggested as a potential solution to control Rhizoctonia bare patch disease... The project will address (i) the shorter-term solutions such as rotation, tillage and fungicides to reduce disease incidence and increase plant growth and yield and (ii) will develop new knowledge that will assist in a longer-term control of Rhizoctonia through improving our understanding and management of natural soil suppressive activity & improved prediction of disease occurrence...
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Catalogue: GRDC Updates
, Desbiolles, J. 3, Ophel-Keller, K.1, Roget, D.K.4 1SARDI, Urrbrae, SA 5064; 2CSIRO Ecosystem Sciences, Urrbrae, SA 5064; 3 UniSA, Barbara Hardy Institute, Mawson Lakes SA 5095, 4 formerly CSIRO Introduction New projects with co-investment from GRDC, SAGIT, Syngenta and Bayer Crop Science are working to develop banding techniques for growers to control Rhizoctonia... Other factors increasing Rhizoctonia disease risk includes greater adoption of intensive cereals and reduced tillage (Figure 1)... Disease severity depends on a number of factors including the amount of Rhizoctonia inoculum at seeding, composition and activity of the soil biology community, available soil N levels over summer and at seeding and constraints to root growth including herbicide damage, low soil temperatures during early seedling growth and compaction layers...
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