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Tag archive: northern region

Eyespot of winter cereals – an emerging disease

We interviewed Marg Evans from SARDI about Eyespot, a fungal disease of cereals which occurs in medium and high rainfall zones.  The disease has been known to occur in paddocks in New South Wales and South Australia for many years. More recently, with changes in farming systems, eyespot has been […]

Survival, spread and controlling crown rot

Crown rot in wheat

Toni Petrionatis from NSW DPI, explains her new project looking at survival, spread and innovative control methods of crown rot in winter cereals with a few handy tips for growers looking to manage crown rot in their crops. Preliminary research has found that the crown rot fungus is not just […]

Mungbean bacterial & fungal diseases

Powdery mildew on potted mungbean

Lisa Kelly from the Department of Agriculture & Fisheries in Toowoomba explains about bacterial and fungal diseases in mungbeans and their treatment options.  Powdery mildew Powdery mildew in mungbean is caused by the fungal species Podosphaera xanthii and is widespread in Australia. A second powdery mildew, preliminary identified as Erysiphe […]

Fungicide resistance – Back to basics

Fungal disease appearing on crop

The treatment of fungal plant pathogens through the use of fungicide applications is and will remain essential for maintaining healthy crops and reliable high-quality yields. Their use in modern cropping systems form a key component of integrated crop management, and their effectiveness must be sustained as long as possible. Understanding […]

Low levels of disease persist during the drier summer season in parts of the northern region

Figure 11. Sunflower crop, Allora (Photo D.L. Adorada)

Summer crop paddocks across northern New South Wales, southern Queensland and central Queensland, were surveyed to monitor fungal and bacterial diseases present in the 2018-2019 summer cropping season. In comparison to the 2017-2018 season, it was drier (Figure 1), making it unfavourable for most grain crop diseases to develop. Observations […]

Spot the difference – Identifying faba bean diseases

Figure 4 Alternaria dark lesions often have a red-brown margin with concentric rings. SOURCE Frank Henry, Agriculture Victoria and Rohan Kimber, SARDI

This guide is provided to help growers and agronomists identify common faba bean diseases in the field including ascochyta blight, cercospora leaf spot, chocolate spot, alternaria leaf spot and rust. Correct identification is important because different fungicides are used to manage different fungal diseases. In particular ascochyta blight, chocolate spot […]

Moisture saves sorghum from disease in parts of the northern region

Figure. 2 (b) Sorghum crop at Mullaley NNSW (14-15 February 2019)

July 2019 will see the start of an investigation to correlate pathogen densities of charcoal rot and fusarium stalk rot with disease expression, lodging and yield loss, using PreDicta®B tests.  Sorghum growers and agronomists are invited to participate in this investigation, so a clearer picture can be established of the […]

Cereal disease guides

The Cereal Disease Guides are essential reading to learn about the latest changes to disease resistance. The Guides also summarise what happened during 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 […]

Latest on Pulse diseases – 2019 GRDC Update papers

Chickpea ascochyta

Keep up with the latest research information on pulse diseases including Phytoplasma, Phytophthora root rot and Ascochyta blight. The following papers were presented at the GRDC Updates across Australia in February and March 2019 and August 2018. The papers are sorted by region. Click the paper titles to view the […]

Latest on Cereal diseases – 2019 GRDC Update papers

Net form of net blotch in wheat

Keep up with the latest research information in cereal diseases: Stem Rust, Net Form of Net Blotch, Crown Rot, Yellow Leaf Spot, Powdery Mildew and Barley Loose Smut. The following papers were presented at the GRDC Updates across Australia in February and March 2019. The papers are sorted by region. […]

Blackspot Manager for field peas 2019

Field pea infected with Blackspot

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 […]

Re-visiting management options for charcoal rot in sorghum

As the 2018/19 summer cropping season draws to a close, sorghum growers are once again confronted with an unfortunate all too familiar problem with charcoal rot and lodging in their paddocks (Figures 1, 2 and 3). This summer season was a text-book case where conditions were ideal for the disease […]