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Catalogue: GRDC Media
Ravensthorpe grower Bevan Tuckett with an instruments station being used to map different soil types for their responsiveness to nitrogen treatments and their water-holding capacity... A SMP is permanently installed and works by sensing moisture in close proximity (about a 10cm radius) to the probe, recording this information and sending it via a cable to a telemetry unit and data logger... More than 50 SMPs have been installed in recent years across WA's broadacre cropping areas in a range of trials supported by GRDC, CSIRO, the Department of Agriculture and Food WA (DAFWA), advisers, grower groups and other industry stakeholders...
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Catalogue: Broadacre Field Crops DAFF QLD
Microplitis is the main vector of ascovirus and so plays a key role in increasing the percentage of caterpillars affected by this disease... High levels of ascovirus may lead to a decline in Microplitis wasp populations... small pale caterpillars in unusually exposed situations (e.g. on a leaf) that look as though they have been feeding in the same place for some time, making a window in the leaf, are probably infected with ascovirus because infected caterpillars can take a long time to die, ascovirus infection in the population can show up in crop scouting data over a series of checks as a number of small caterpillars (shorter than 8 mm) in the crop, with very few medium-large caterpillars coming through...
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Catalogue: Broadacre Field Crops DAFF QLD
Microplitis is the main vector of ascovirus and so plays a key role in increasing the percentage of caterpillars affected by this disease... High levels of ascovirus may lead to a decline in Microplitis wasp populations... small pale caterpillars in unusually exposed situations (e.g. on a leaf) that look as though they have been feeding in the same place for some time, making a window in the leaf, are probably infected with ascovirus because infected caterpillars can take a long time to die, ascovirus infection in the population can show up in crop scouting data over a series of checks as a number of small caterpillars (shorter than 8 mm) in the crop, with very few medium-large caterpillars coming through...
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Catalogue: Broadacre Field Crops DAFF QLD
Microplitis is the main vector of ascovirus and so plays a key role in increasing the percentage of caterpillars affected by this disease... High levels of ascovirus may lead to a decline in Microplitis wasp populations... small pale caterpillars in unusually exposed situations (e.g. on a leaf) that look as though they have been feeding in the same place for some time, making a window in the leaf, are probably infected with ascovirus because infected caterpillars can take a long time to die, ascovirus infection in the population can show up in crop scouting data over a series of checks as a number of small caterpillars (shorter than 8 mm) in the crop, with very few medium-large caterpillars coming through...
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Catalogue: GRDC Media
GRDC calls for grower help with BYDV project.. The Grains Research and Development Corporation (GRDC) is calling for grower assistance in identifying the strains of Barley Yellow Dwarf Virus (BYDV) present in the key cropping areas of New South Wales and Queensland... For transporting, tillers should be shortened back to approximately 30cm including the base then wrapped in moist newspaper (identifying which is diseased), and posted to: Dr Mark Schwinghamer, Agronomy and Soil Science, University of New England, NSW 2351...
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Catalogue: GRDC Media
GRDC calls for grower help with BYDV project.. The Grains Research and Development Corporation (GRDC) is calling for grower assistance in identifying the strains of Barley Yellow Dwarf Virus (BYDV) present in the key cropping areas of New South Wales and Queensland... For transporting, tillers should be shortened back to approximately 30cm including the base then wrapped in moist newspaper (identifying which is diseased), and posted to: Dr Mark Schwinghamer, Agronomy and Soil Science, University of New England, NSW 2351...
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Catalogue: Ground Cover
- By Catherine Norwood Across Australia's grain-growing states, grains biosecurity officers provide a link between policy, planning and the practical application of biosecurity measures on farms and in the community... At field days, for instance, the grains biosecurity officers are often as busy behind the scenes as they are mixing with participants... IMAGE CAPTION: Grains biosecurity officers are often as busy behind the scenes as they are mixing with participants at field days...
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Catalogue: Ground Cover
In upcoming editions of Ground Cover we will be running a column focusing on application, as well as releasing fact sheets about spraying and drift reduction... In the edition we are discussing summer fallow set-ups and techniques that can improve efficacy while reducing drift potential... The article below on summer fallow spraying discusses how larger droplets can provide excellent efficacy, and that nozzle type and orientation can play an important role in making larger droplets even more effective, particularly on larger targets...
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Catalogue: GRDC Media
Feathertop Rhodes grass (Chloris virgata) is a major weed of fallows and roadsides in central Queensland and is becoming increasingly common in southern Queensland, NSW, Victoria and South Australia... As well as addressing the ecology of feathertop Rhodes grass, the webinar explains how that knowledge can be used to develop effective management strategies... Control is becoming more challenging with four Australian populations recently confirmed as resistant to glyphosate, forcing growers to rely on an integrated management strategy incorporating practices such as tillage, crop choice, crop competition, residual herbicides and the selective use of double knock applications in fallow...
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Catalogue: GRDC Media
Feathertop Rhodes grass (Chloris virgata) is a major weed of fallows and roadsides in central Queensland and is becoming increasingly common in southern Queensland, NSW, Victoria and South Australia... As well as addressing the ecology of feathertop Rhodes grass, the webinar explains how that knowledge can be used to develop effective management strategies... Control is becoming more challenging with four Australian populations recently confirmed as resistant to glyphosate, forcing growers to rely on an integrated management strategy incorporating practices such as tillage, crop choice, crop competition, residual herbicides and the selective use of double knock applications in fallow...
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