Blackspot Manager is a forecasting model for ascochyta blight (synonym: blackspot) of field peas. It can be used by agronomists and growers to help identify the best balance between early sowing and potential yield loss from ascochyta blight. Windborne ascochyta spores are released from infected stubble early in autumn, with timing […]
Topic: Western region
The Cereal Disease Guides are essential reading to learn about the latest changes to disease resistance. The Guides also summarise what happened in the last season and what diseases are likely in the coming year.
The resistance ratings in the guides are an important management tool because they provide a guide […]
Keep up with the latest research information on canola diseases including blackleg and sclerotinia. The following papers and key messages were presented at the GRDC Updates across Australia in February and March 2018.
Southern region papers
Western region papers
Read the key messages below and click the paper titles to view the full […]
*Information on crown rot symptoms and management is available in the article Crown rot in winter cereals
During 2015 and 2016 there were low levels of crown rot in many wheat paddocks in the low to medium rainfall zones of WA. The severe level of disease experienced during the 2014 season […]
Dry seasonal conditions across much of Australia in 2017 favoured the expression of whiteheads in wheat crops associated with infection by the fungal disease crown rot.
Crown rot infection of seedlings is favoured by a wet start to the season. If the season stays wet and/or mild there may be no […]
Figure 1. Blackleg leaf lesion on canola
Blackleg is a fungal disease of canola that can cause severe yield loss. It is more severe in areas of intensive canola production as fungal spores are released from the previous year’s canola stubble and spread by wind and rain splash. With good management yield loss […]
This article describes the different symptoms of canola fungal diseases blackleg, white leaf spot, downy mildew and alternaria leaf spot.
Blackleg, caused by the fungus Leptosphaeria maculans, is the most serious disease of canola in Australia. Blackleg lesions are grey, circular spots with black fruiting bodies (pycnidia) forming in the centre (Figures […]
Stubble-borne diseases such as yellow leaf spot (YLS) of wheat and spot form of net blotch (SFNB) of barley will need to be monitored during 2016 and foliar fungicides applied where necessary. These diseases will be common and most severe in early sown crops with wet seasonal conditions across the […]
Keep up with the latest research information on cereal diseases including Septoria tritici blotch of wheat, spot and net blotch of barley, rhizoctonia root rot, crown rot and the cereal rusts. The following papers were presented at the GRDC Updates across Australia in February and March 2016.
Southern region papers
Northern region […]
Keep up with the latest research information on oilseed diseases including sclerotinia and blackleg. Below are the take home messages from papers presented at the GRDC Updates in February and March 2016.
Click the paper titles to view the full papers.
Weeds and crop stubble as a pathogen […]