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nematode

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Catalogue: GRDC Publications
Barley Yellow Dwarf Virus can be a threat in all environments, and it is recommended that seed be treated with imidicloprid, or crops closely monitored for aphid infestation and sprayed ... In the circumstances using fertilisers that have a higher sulphur content, like MES 10 or Airseeder Superfect, can be beneficial... A fast track project was initiated to demonstrate and evaluate a range of management strategies that Twelve farms were surveyed across the western districts of southern Victoria that were considered suitable as potential trial sites based on grower and adviser recommendations...
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Catalogue: GRDC Final Reports
RLN cause substantial yield losses, particularly in wheat, but they reproduce on numerous summer and winter crops... The resistance experiments also demonstrated the large range of susceptibility within crops, even for barley, providing an additional benefit from this work... We conducted a targeted survey of nine farms in the northern grain region to gain knowledge about the presence of the stunt nematode and zoosporic fungi such as Olpidium (zoosporic fungi are characterised by the production of spores called zoospores which have flagella and are motile in water)...
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Catalogue: GRDC Updates
Summer crops that are resistant to root-lesion nematodes can be used to reduce nematode populations... In an experiment in 2011 at Formartin, several varieties of summer crops were grown and P. thornei populations were assessed before planting and after harvest... Means of several varieties within each crop are presented...
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Catalogue: GRDC Factsheets
Recent research has identified that northern grain-growing soils are capable of suppressing root-lesion nematodes, especially in the top layer (0-15 cm) of soil, and this capacity can be enhanced by increasing the biological activity of that soil, mainly through carbon inputs and minimising soil disturbance... Results from 600 samples tested in 2010-13 showed that 50% of paddocks had populations above 2 nemotodes/g soil... A recent survey in Central Queensland found that 28% of paddocks had RLN, with 26% of those paddocks containing P. thornei...
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Catalogue: GRDC Media
Drew Penberthy, Crown Analytical Services (CAS) and Penagcon and Rob Long, CAS and B&W Rural, Moree, NSW organised the information day and say good attendance was testament to the impact of the issues... "Nematodes, crown rot and lower protein levels impacted on yield and profits in the 2012 season, which was characterised by a wet start, particularly cold and wet July and then virtually no rain," Mr Long said... Crown Analytical Services manages Grains Research and Development Corporation (GRDC)-funded research trials into crown rot in the Moree district and Mr Long says the disease became an issue as conditions dried out late in the season...
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Catalogue: GRDC Media
Drew Penberthy, Crown Analytical Services (CAS) and Penagcon and Rob Long, CAS and B&W Rural, Moree, NSW organised the information day and say good attendance was testament to the impact of the issues... "Nematodes, crown rot and lower protein levels impacted on yield and profits in the 2012 season, which was characterised by a wet start, particularly cold and wet July and then virtually no rain," Mr Long said... Crown Analytical Services manages Grains Research and Development Corporation (GRDC)-funded research trials into crown rot in the Moree district and Mr Long says the disease became an issue as conditions dried out late in the season...
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Catalogue: GRDC Updates
By screening and field testing the resistance and tolerance of wheat and barley cultivars, relevant information can be supplied to allow growers to incorporate cultivars into rotations that limit the populations of and damage caused by nematodes... Significant yield impacts occurred for wheat varieties assessed in Toodyay 2012 when comparing yield to nematode numbers at anthesis (Table 2)... Coupled with resistance data, these results indicate Emu Rock may be only moderately susceptible but very intolerant to P. teres while the other varieties are intolerant but range in levels of susceptibility to the pest...
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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: Grains Notes DEPI VIC
Without appropriate management, diseases can severely impact on the yield and quality of wheat crops in the Wimmera region of Victoria... The Information Note first discusses the integrated management strategies that are required to protect crops from losses due to disease, and then discusses the important diseases of wheat in more detail... For some diseases, a single management strategy is effective, while for others a number of approaches need to be utilised together to ensure effective management...
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Catalogue: GRDC Research Summaries
The overall objective of this research program is to develop and deliver strategies for management of plant diseases of importance to SA grains industries... The increased frequency of cereals and greater adoption of susceptible cultivars is creating an opportunity for cereal cyst nematode (CCN) to re-emerge as a significant problem in the southern region... Subproject 3 continues existing monitoring and surveillance of new races and pathogen threats; this subproject will link with newly appointed grains biosecurity officer in SA. Subproject 4 focusses on rebuilding a joint capability in the southern region to address key issues in cereal nematology, most critically preventing CCN re-emerging as a significant problem...
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