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foliar fungicide

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Catalogue: GRDC Updates
Previous research conducted at Horsham has found that canola plants infected after the third to fifth leaf stage did not result in the formation of a stem canker... The aim of the work was to investigate the use of foliar fungicides on canola seedlings as an alternative or in addition to the application of a seed dressing for blackleg control in areas of high disease pressure... Results from the field experiments suggest that the addition of a seed dressing and the application of a foliar fungicide gave the best protection...
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Catalogue: GRDC Updates (West)
Foliar fungicide applications at or prior to first node stage (Z31) can be effective at controlling leaf spot diseases in susceptible wheat varieties under high disease pressure... Necrotic leaf area was determined on top 3 to 4 leaves (on 15 tillers /plot) from all plots at Z15, Z25, Z31, Z39, Z55 (i.e. before each foliar fungicide spray) and Z72, or in the case of opportunistic trials assessed at regular intervals after trial establishment... The in-furrow fungicides tested show promise for leaf spot disease control and in the future they may become an alternative to foliar applications, for the control of early season leaf spot infections...
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Catalogue: GRDC Media
Trap results suggest heightened barley disease risk.. Grain growers in Western Australia's southern cropping regions are advised that there is a heightened risk of foliar fungal diseases infecting barley crops this season... Department of Agriculture and Food (DAFWA) researcher Kith Jayasena said DAFWA spore trapping work supported by the Grains Research and Development Corporation (GRDC) had detected spores in mid-may of leaf rust, net blotch, spot blotch/root rot, scald and powdery mildew...
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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 Publications
Influence of fungicide rate (mean of fungicide products - four site mean) Stem rust control assessed over the four trial sites revealed that using high rates was essential for the control of the disease, even if the fungicide had been applied prophylactically (before infection was visible in the crop)... Influence of cultivar resistance and fungicide application (Prosaro ) on yield and stem rust severity measured on the flag sheath 18 days after fungicide application at early dough (GS82) and assessed at mid dough - physiological maturity (GS85-90) - Bairnsdale, Gippsland, Victoria, 2010... The yield potential for the crop with no nitrogen applied is estimated at GS30 from the results of numerous of trials conducted in that region where NDVI at GS30 is divided by the number of growing degree days (GDD) greater than 0 C since planting, referred to as the INSEY units (in season estimate of yield)...
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Catalogue: GRDC Final Reports
Through a national series of 40 trials and 20 Soil 2 Grain workshops, this project generated a series of guidelines on the tactical use of agrichemicals and nitrogen (N) in cereals during stem elongation... Disease management outputs included the construction of a green leaf duration calculator for making better fungicide decisions, management guidelines for the use of foliar fungicides to control stem rust in wheat, stripe rust control in wheat varieties with adult plant resistance (APR) and powdery mildew in barley... Using a conservative 5% uptake (based on losses estimated by Murray & Brennan of crops with powdery mildew in WA and leaf rust susceptible barley in the northern region) these guidelines could increase margins by an estimated $5 million/year...
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Catalogue: GRDC Publications
Published: May 2012 ISBN: 978-1-921779-19-0 In submitting this report, the researchers have agreed to the GRDC publishing this material in its edited form... Incidence is 40 per_cent frequency in 25 per_cent of the area, so that the average incidence of the disease affecting the crop is 10 per_cent... Eighteen, including all the fungal diseases, of the 21 diseases surveyed were reported as present on lentils in the 8.3 Diseases of lentils Southern Region and in Australia...
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Catalogue: GRDC Updates (North)
The potential for epidemic development can be gauged by the amount of disease in the lower canopy... Cereal seed treatments are widely used throughout the Northern Grains Region (NGR) to control or suppress a broad range of diseases... With a range of diseases that are more difficult to control and a grain fill period less predisposed to drought stress there may be more benefit to strobilurins in barley crops rather than wheat, though more work is needed to verify this statement...
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Catalogue: GRDC Updates (South)
The potential for epidemic development can be gauged by the amount of disease in the lower canopy... Cereal seed treatments are widely used throughout the Northern Grains Region (NGR) to control or suppress a broad range of diseases... With a range of diseases that are more difficult to control and a grain fill period less predisposed to drought stress there may be more benefit to strobilurins in barley crops rather than wheat, though more work is needed to verify this statement...
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Catalogue: GRDC Media
Collective action can minimise barley disease losses.. "Strategies that can help minimise the risk of yield losses include destroying the 'green bridge' including barley volunteers and weeds (to reduce rust carry-over); using appropriate seeding strategies; monitoring emerging crops for signs of disease; and considering using a registered foliar fungicide if the variety is susceptible to the diseases found," Dr Jayasena said... "I encourage growers to monitor the early development of crops for leaf disease symptoms and to consider using a registered foliar fungicide if the variety is susceptible to the diseases found," Dr Jayasena said...
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