Category: Pulse diseases

Blackspot Manager for field peas

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 […]

Latest on Pulse disease – 2018 GRDC Update Papers

Keep up with the latest research information on pulse diseases including Ascochyta rabiei management. The following papers were presented at the GRDC Updates across Australia in February and March 2018.
Click the paper titles to view the full papers.
Northern Region
Why adhering to integrated Ascochyta rabiei management strategy is not more important […]

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 and […]

Top five of 2017

Take a look at our five most popular articles and videos from 2017.  
This year we published 35 articles on extensionAUS Field Crop Diseases. These articles covered 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 […]

Mungbean powdery mildew management with fungicide

Powdery mildew of mungbean, white fungal growth, on upper leaves of maturing mungbean plant

Figure 1 Powdery mildew of mungbean, white fungal growth, on upper leaves of maturing mungbean plants. Source: Adam Sparks, USQ

Caused by the fungus Podosphaera xanthii, powdery mildew of mungbean  is responsible for yield losses of up to 40% in  susceptible varieties within Australia. Plants are susceptible to the disease from […]

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 […]

Bacterial blight survey to inform breeding efforts

Bacterial blight in field pea. Source Pragya Kant, Agriculture Victoria

Researchers are requesting industry to submit field pea samples infected with bacterial blight from all pea growing regions. This survey will help researchers understand the prevalence of the pathovars within the pathogen population.
Bacterial blight disease in field pea is caused by the bacterial pathogen, Pseudomonas syringae. There are two pathovars, pv.syringae […]

Latest on crop disease – 2017 GRDC mid-year update papers

Keep up with the latest research information on crop diseases including blackleg, sclerotinia, wheat rusts and septoria.  The following papers were presented at the GRDC Updates across Australia in July and August 2017. Click the paper titles to view the full papers.
Spray boom technology – improving coverage and managing drift
Author: […]

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 […]