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canola plant

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 Media
Cabbage aphids living on the edge.. "Field trials at York and New Norcia in 2013 showed that cabbage aphids - which can cause feeding damage to canola crops in late winter and spring - tend to be distributed along crop edges," Mr Severtson said... Mr Severtson said that as well as highlighting the importance of weed control, the results implied that a border spray might be just as effective at controlling cabbage aphids as a full paddock spray, saving growers time and money...
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Catalogue: Ground Cover
Hart Winter Walk: virus explained to growers.. Ms Davidson explained that when growers first started reporting widespread damage in June it was initially put down to incorrect herbicide use, but as more crops started showing yellowing leaves a different picture emerged... Crops such as chickpeas, lentils and field peas had not emerged when the first round of the virus hit, but Ms Davidson told growers that pulses will also be susceptible to BWYV in spring...
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Catalogue: Ground Cover
Ms Davidson explained that when growers first started reporting widespread damage in June it was initially put down to incorrect herbicide use, but as more crops started showing yellowing leaves a different picture emerged... "If crops show patchy infection it may be necessary to control the aphids to prevent further spread of the virus into unaffected parts of crops during late winter and spring.".. Crops such as chickpeas, lentils and field peas had not emerged when the first round of the virus hit, but Ms Davidson told growers that pulses will also be susceptible to BWYV in spring...
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Catalogue: GRDC Media
"Field trials at York and New Norcia in 2013 showed that cabbage aphids - which can cause feeding damage to canola crops in late winter and spring - tend to be distributed along crop edges," Mr Severtson said... Caption 2 : Researcher Dusty Severtson, of UWA and DAFWA, in a New Norcia paddock - one of the sites for field trials researching the distribution of cabbage aphids... Mr Severtson said that as well as highlighting the importance of weed control, the results implied that a border spray might be just as effective at controlling cabbage aphids as a full paddock spray, saving growers time and money...
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Catalogue: GRDC Media
Cabbage aphids prefer to colonise the underside of lower leaves on canola plants, rather than the racemes (flowering spikes)... Growers and advisors are encouraged to report incidences of crop pests and diseases, including cabbage aphids, via email to DAFWA's PestFax service at: pestfax@agric.wa.gov.au.. Caption: Researcher Dusty Severtson, of UWA and DAFWA, in a New Norcia paddock that was one of the 2013 sites for field trials researching the distribution of cabbage aphids...
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Catalogue: GRDC Research Summaries
The objective of the project is to develop a training and research resource in applied entomology that can serve the future needs of the Australian grains industry nation-wide... In Australia, as in other countries, there has been a decline in education and training courses in applied entomology such that the supply of trained researchers and field entomologist world-wide has decreased markedly... Plot and glasshouse trials for spider mites in maize and redlegged earth mites and aphids in canola indicate that insect pests prefer host plants affected by an imbalance of certain nutrients...
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Catalogue: GRDC Media
Cabbage aphids prefer to colonise the underside of lower leaves on canola plants, rather than the racemes (flowering spikes)... Growers and advisors are encouraged to report incidences of crop pests and diseases, including cabbage aphids, via email to DAFWA's PestFax service at: pestfax@agric.wa.gov.au.. Caption: Researcher Dusty Severtson, of UWA and DAFWA, in a New Norcia paddock that was one of the 2013 sites for field trials researching the distribution of cabbage aphids...
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Catalogue: NVT Online Papers
Early work on canola focused on weed management strategies including the breeding of herbicide tolerant canola varieties such as triazine tolerant (TT) varieties which now account for an estimated 90% of canola grown in WA... Research is still being conducted to determine the effect of these viruses on the yield of canola in WA. European work has found seed yield losses of 10-15% associated with this virus disease in canola... The amount of air passed through the grain is measured in litres per second per tonne and varies depending on the particular aeration strategy...
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Catalogue: GRDC Updates
The large areas sown to canola in 2011 and the predicted increases in the area sown to canola in 2012 in southern NSW and northern Victoria will increase blackleg severity and increase the likelihood of yield losses... 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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