Field Crop Diseases

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Tag archive: national

Top five articles of 2018

Top five articles of 2018

Take a look at the most popular top five articles articles and videos from 2018. In 2018 GRDC Communities Field Crop Diseases published 27 articles covering many disease issues which impact on grains production. These articles were prepared with, and reviewed by, members of our Community of Practice, Australia’s leading […]

Generating blackleg resistance groups

Blackleg resistance group testing

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 […]

The BlacklegCM App

Steve Marcroft using the BlacklegCM App

All the knowledge you need at your fingertips in the BlacklegCM App Steve Marcroft explains the value of the new BlacklegCM app and how you can use it to compare management strategies for your canola crop. The new BlacklegCM app combines 30 years worth of data and knowledge accessible straight […]

Benchmarking blackleg fungicide resistance

Canola seedlings being screened for fungicide resistance in blackleg populations.

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 […]

Bacterial Blight survey to inform breeding efforts – 2017 survey results

Bacterial blight

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 […]

Taking stock of what we know about Crown rot

Crown rot whiteheads in trial plot. Source Lee Hickey.

Crown rot has long been present in Australian cropping systems, but the introduction of minimum tillage systems, changing rainfall patterns and increased heat events has meant an increase in the severity and prevalence of this disease. This article looks at the key findings from the recent review Crown rot of […]

Crop disease updates and subscriptions

Subscribing to crop disease updates

Is reading the latest in field crop disease risk and information important to you?  If so, take a look at the information services below: GRDC Communities Field Crop Diseases Field Crop Diseases curate a newsletter of the latest information on crop diseases and delivers it to your inbox each week, providing you […]

Septoria tritici blotch update

Even though 2017 wasn’t particularly conducive to wet weather diseases like Septoria tritici blotch, there were still widespread reports of this disease in crops throughout southern Australia. ‘How we can therefore manage our fungicide use to reduce resistance risk’ was Nick Poole’s key message when he presented at the Adelaide […]

Cucumber Mosaic Virus – sowing healthy seed is critical

Aphid-borne virus epidemics are favoured when a significant source of virus infection is present, and climatic conditions (warm weather, rainfall sufficient for green bridge development) favour aphid buildup. Best management for seed-borne pulse viruses, such as Cucumber Mosaic Virus (CMV) starts with maintaining a healthy seed source. Sowing healthy seed […]

Barley disease yield loss response curves

Trial plots for Barley disease yield loss response curves project.Source: Greg Platz.

Yield loss data is often generated by comparing trial plots with high disease levels and plots with no disease. Yield loss figures are then calculated based upon potential yield loss as a percentage of maximum yield in a susceptible variety. In an on-farm situation, disease pressure is more likely to […]