The area of chickpea affected by Ascochyta Blight, (caused by the fungus Phoma rabiei, formerly Ascochyta rabiei) has increased considerably since the last update on 14 August 2014. Ascochyta blight has been found north in the Darling Downs of Southern Queensland and south at Forbes in central NSW. To the […]
This is an extract from a presentation made by Sue Thompson at a soybean research meeting in Griffith, NSW on 23 September 2014.
Diaporthe is a fungal pathogen that causes phomopsis stem canker on sunflower and phomopsis stem and pod blight on soybean. This presentation discusses symptoms, hosts, survival and how […]
As growers in the southern region move closer to the ‘business end’ of the cropping season the true effects of earlier infestations of Green Peach Aphid (PDF 4 Mb) (Myzus persicae) and Beet Western Yellows Virus (BWYV) in canola crops are being realised.
The encouraging news is that although early infected […]
Chickpea and other pulse crops in the Northern region can be significantly affected by a range of aphid transmitted viruses as was observed in chickpea crops in 2012 and 2013.
The effect of virus infection on plants include stunting, reddening, chlorosis, distortion, shoot tip wilting, reduced yield and grain quality and […]
Click here to view larger version of the map (559 kb)
This map shows the locations of samples which tested positive (red) or negative (blue) for Beet western yellows virus (BWYV) in NSW, SA and Victoria as of 17/09/2014 by closest town. Below is a map of West Australian research […]
There have been multiple reports of stripe rust in Victoria. It has been reported in cv. Corack at Mitiamo and cv. Mace wheat near Nhill. Now is the time to consider fungicide application, especially for susceptible varieties. Check a current Victorian Cereal Disease Guide for the latest ratings and […]
These canola crops in the Eudunda area of the Lower North in South Australia were infected with BWYV at the rosette stage. SARDI pathologists and entomologists first visited them in on the 17th of June.
In late June the young plants initially dropped all leaves and then started to re-shoot so […]
Don McCaffery, Technical Specialist (Pulses and Oilseeds), NSW DPI talks about the beet western yellows virus (BWYV) outbreak in canola.
He discusses the spread of the virus in NSW, monitoring for green peach aphid (GPA), considerations for spraying, virus symptoms, potential yield impact and implications for 2015.
Growers are advised to monitor […]
Presentation from August 2014.
This presentation describes the lead up to the recent beet western yellows virus outbreak in the southern region, the current situation and the situation moving forward. It contains information relating to the symptoms of BWYV in canola, likely yield losses of affected crops and factors that contributed to this […]
In 2014 south eastern Australia experienced the right conditions for the growth of green peach aphid (GPA) leading to significant spread of the Beet western yellows virus (BWYV) in canola. These presentations on BWYV in canola and GPA were given at Wagga Wagga, NSW 5 August 2014 by NSW Department […]