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nematode

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Catalogue: Ground Cover
Pea plantings drop as canola finds favour.. Canola is booming in Western Australia as growers are attracted to the crop's economics; the trick now is to find the right balance to maintain the agronomic benefits of pulses... Despite canola offering a higher return per hectare and more marketing and weed-control options, Mr Meldrum and growers such as Ron Longbottom are quick to point out that field peas still have a crucial role to play in a balanced cropping regime...
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Catalogue: GRDC Final Reports
" Rotations to reduce impact of nematodes in Western cereal cropping systems DAW00124 Start Date: 01/07/2005.. Results for Pratylenchus penetrans indicate that RLN could possibly adapt to different hosts, depending on cropping history... To optimise the management of RLN with the use of rotations, these weeds should be controlled in cropping paddocks...
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Catalogue: GRDC Final Reports
At least 60% of Western Australian (WA) cropping paddocks are infested with Root Lesion Nematode (RLN - Pratylenchus spp.)... Nematode levels from plots were measured following sowing and again in mid spring... The method can distinguish oat and lucerne races of Stem Nematode, which has not previously been possible...
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Catalogue: GRDC Updates
Biopesticides offer an innovative approach to the management of pests in farming systems using formulated microbial agents as the active ingredient... Microbes that have been used in this approach include fungi, bacteria, viruses and nematodes... From initial surveys, a number of species of Trichoderma not previously recorded from Australia have been identified and their interaction with the organism responsible for crown rot and RLN are being evaluated in laboratory and glasshouse trials...
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Catalogue: GRDC Media
Tests will confirm species and population levels of these microscopic endoparasites and help the Department of Agriculture and Food WA (DAFWA) characterise distribution and gather resistance information for crops and varieties grown in WA... The research, jointly funded by GRDC and DAFWA, is vital because yield loss can occur without careful planning in crop variety selection and no chemicals are currently available to economically control RLN in broadacre cropping systems... Using resistant varieties of a crop to inhibit nematode reproduction...
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Catalogue: Ground Cover
Growers who plan their crop rotations could reduce yield losses during the growing season by testing for the microscopic soil pests root lesion nematodes (RLN)... Department of Agriculture and Food, Western Australia (DAFWA) senior nematologist Dr Vivien Vanstone is leading ongoing GRDC-supported research into RLN management in WA. She says the absence of registered chemicals to control nematodes in broadacre crops prevents growers from eradicating the pests. ".. GRDC-funded projects aim to clarify yield losses and ascertain variety tolerance to nematode species in WA. "This will provide information to help growers choose varieties that are the least prone to yield loss under nematode attack. "..
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Catalogue: GRDC Media
Know your nematodes and set up a crop defence system in 2014.. WA growers are encouraged to find out what species and levels of root lesion nematodes (RLN) are present in their soils during the growing season... DAFWA research has indicated crops that are resistant to P. penetrans are often highly susceptible to P. neglectus or P. teres, highlighting the importance of knowing which species of RLN is present - as management of one RLN species may be causing an increase in another...
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Catalogue: GRDC Media
"I had always assumed, as had many other researchers, that nematodes ate into the roots, stunting their growth so that the plants could not reach water in the deeper soil," Dr Whish said... His research is finding that the root systems have developed almost normally and Dr Whish instead suspects the nematodes inflict their damage by penetrating the roots' outer layer and restricting their ability to transport water... "The nematodes penetrate the root, lay eggs inside the cortex of the roots and eventually the outer wall of root collapses causing the lesion and we believe this breaks the pipe that transports water to the plant," Dr Whish said...
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Catalogue: GRDC Media
"I had always assumed, as had many other researchers, that nematodes ate into the roots, stunting their growth so that the plants could not reach water in the deeper soil," Dr Whish said... His research is finding that the root systems have developed almost normally and Dr Whish instead suspects the nematodes inflict their damage by penetrating the roots' outer layer and restricting their ability to transport water... "The nematodes penetrate the root, lay eggs inside the cortex of the roots and eventually the outer wall of root collapses causing the lesion and we believe this breaks the pipe that transports water to the plant," Dr Whish said...
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Catalogue: GRDC Media
Know your nematodes and set up a crop defence system in 2014.. WA growers are encouraged to find out what species and levels of root lesion nematodes (RLN) are present in their soils during the growing season... DAFWA research has indicated crops that are resistant to P. penetrans are often highly susceptible to P. neglectus or P. teres, highlighting the importance of knowing which species of RLN is present - as management of one RLN species may be causing an increase in another...
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