The Blackleg Management Guide not only provides blackleg resistance ratings but also blackleg resistance groups for current canola cultivars. But how do researchers determine these? Steve Marcroft talked us through how researchers establish resistance groups for canola cultivars, and more importantly, why you should know the resistance groups of the […]
Summer crop paddocks across northern New South Wales, southern Queensland and central Queensland, were surveyed to monitor the fungal and bacterial diseases present in the 2017-2018 summer cropping season. The season was unusually hot and dry, which in most cases, led to reduced fungal and bacterial diseases, but did not […]
With the summer cropping season nearing completion, growers are hoping for an above average yield of sorghum crop for the 2017/2018 summer growing season in the Northern Region. Crops looked good as of the end of January (Figure 1), but by mid-February tweets were flying and phone calls were being […]
Dry conditions across the medium and low rainfall zones in South Australia and Victoria hasn’t stopped the development of ascochyta blight in some chickpea and lentil crops. In spite of low seasonal rainfall, the frequent rainfall events during August along with heavy dews have provided suitable conditions for infection in […]
Registrations of foliar fungicides for use in cereals, canola & lupins in Western Australia were updated in April 2018. The information provided details of products with full registration or with permits for use in WA and provides further details on application rates, withholding periods and other instructions, along with how […]
Understanding the current levels of fungicide resistance in blackleg populations is key to monitoring the effectiveness of current fungicides and new chemistries entering the market. In 2015 a survey of 200 canola paddocks found 15% of canola paddocks contained blackleg that was tolerant to Jockey fungicide (fluquinconazole). This season, Marcroft […]
Following on from samples submitted in 2017, researchers are again this year requesting industry to submit green field pea samples infected with bacterial blight from all pea growing regions. These samples will help researchers understand the prevalence of the pathovars within the bacterial blight pathogen population. Bacterial blight disease in […]
In 2017 researchers requested the industry to submit field pea samples infected with bacterial blight from all pea growing regions around Australia to help understand the prevalence of the pathovars within the pathogen population. Bacterial blight disease in field peas is caused by the bacterial pathogen, Pseudomonas syringae pathovars syringae […]
