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pratylenchus

Catalogue: GRDC Media
SARDI's Dr Alan McKay says take-all is the disease likely to catch growers out... Inoculum levels are the highest in more than a decade and growers and advisers managing intensive cereal or cereal/pasture rotations should plan ahead to avoid yield loss later in the season... "If the paddock must be sown to a cereal, then consider barley because any yield losses will be only half that of wheat's potential losses, but inoculum levels will continue to increase."..
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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
Root lesion nematodes (RLN) are proving to be at high levels in Western Australian cropping paddocks this year and growers are encouraged to have samples tested to help them manage the pest in coming seasons... Surveys conducted by the Department of Agriculture and Food (DAFWA), with support from the Grains Research and Development Corporation (GRDC), showed that RLN caused widespread damage in every WA cropping zone last year... "RLN species were found in 90 per cent of 130 paddocks surveyed, and in 48 per cent of paddocks the nematode levels were high enough to cause 15 to 50 per cent yield loss," DAFWA researcher Sarah Collins said...
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Catalogue: GRDC Media
The results send a clear signal to growers that baseline measurement and management of RLN populations through soil testing, varietal selection and crop rotation is imperative if yield losses are to be avoided... "If RLN are not detected, protect those paddocks from contamination by controlling movement of soil and water on the farm," she said... In paddocks where RLN populations are detected, Dr Owen said rotation and variety selection were the primary management options and that growers should aim to reduce populations to less than 2 nematodes/g soil (2000/kg soil)...
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Catalogue: GRDC Media
The results send a clear signal to growers that baseline measurement and management of RLN populations through soil testing, varietal selection and crop rotation is imperative if yield losses are to be avoided... "If RLN are not detected, protect those paddocks from contamination by controlling movement of soil and water on the farm," she said... In paddocks where RLN populations are detected, Dr Owen said rotation and variety selection were the primary management options and that growers should aim to reduce populations to less than 2 nematodes/g soil (2000/kg soil)...
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