Field Crop Diseases

Reduce resistance risk with good fungicide management

Chemical drums and trailing boom spray in paddock. Source: Agriculture Victoria

Nick Poole, Managing Director at the Foundation for Arable Research (FAR) Australia highlights key considerations for the management of fungicides including reducing the risk of resistance. He stresses the importance of rotating fungicides to reduce the risk of fungicide resistance development.
Further information

New fungicides and disease management strategies for wheat and […]

Diagnosing plant diseases: What do we ask and why do we ask for it?

Diagnosing a plant disease or other injury is like going to a medical doctor who must ask several questions before making an accurate diagnosis and recommending a treatment. If you withhold information, it can lead to a misdiagnosis. The same goes for crop diseases. Plant pathologists, specifically diagnosticians, are often […]

Wheat and barley foliar diseases getting a run on in Victoria

Spot form of net blotch. Source: Luise Sigel, Agriculture Victoria.

Recent wet conditions have been ideal for disease development in Victoria. Diseases will be best controlled using a proactive fungicide response before disease has fully developed. It is not the year to wait and see!
Stripe rust, powdery mildew, septoria and yellow leaf spot are present in wheat crops. In barley, […]

Protect wheat from Septoria tritici this spring

Septoria tritici with black fruiting bodies pycinidia. Source: Grant Hollaway (Agriculture Victoria)

Septoria tritici blotch is present in wheat crops in the Victoria Wimmera and across the medium and high rainfalls regions of SA. Agronomists and growers are encouraged to monitor their wheat for symptoms, with a view to fungicide control if necessary.
This disease was common at low levels in the Wimmera […]

Proactively manage barley diseases in 2017 – interview with Mark McLean

Agronomists at field day with mark mclean discussing barley diseases.

After a bumper season in 2017 Victorian growers are reminded to be proactive in monitoring and management of barley diseases. Mark McLean, Barley Pathologist with Agriculture Victoria spoke to us at the Bendigo GRDC Updates and gives growers a heads up of what diseases are likely to pop up in […]

Top 3 diseases to watch for fungicide resistance

Figure 1. A) Barley net form of net blotch, B) barley powdery mildew and C) Wheat powdery mildew have been highlighted in the 2016 Fungicide Resistance Group sampling report.

Three key fungicide resistance findings from the 2016 growing season remind Australian growers to stay vigilant when it comes to monitoring crop disease.
These are findings of the annual sampling report by the Fungicide Resistance Group, a program within the Centre for Crop and Disease Management, co-supported by Curtin University and […]

Lupin growers to keep an eye out for Lupin anthracnose

In the eastern Riverina region of NSW in October 2016 lupin anthracnose was detected for the first time in commercial crops. The disease is present in WA and SA but still remains a notifiable exotic disease in NSW and Victoria. Natural hosts of lupin anthracnose are not established in NSW […]

Spot the difference – identifying fungal diseases on canola

This article describes the different symptoms of canola fungal diseases blackleg, white leaf spot, downy mildew and alternaria leaf spot.
Blackleg
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 […]

The Northern Chickpea Ascochyta Diaries

Chickpea Ascochyta - kevin moore

These diaries are intended to update chickpea growers in New South Wales and Queensland with the current Ascochyta situation in 2017. They will be updated with observations throughout the season.
30 June 2017 – Should I spray for Ascochyta before forecast 3 July rainfall?
Is a fungicide spray required before forecast rainfall […]