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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 than ever to sustain a profitable chickpea industry

Authors: Rebecca Ford (Griffith Uni), Kevin Moore (NSW DPI), Prabhaharan Sambasivan (Griffith Uni), Yasir Mehmood (Griffith Uni), Kristy Hobson (NSW DPI), Christine Walela (SARDI Clare), Jason Brand (Agriculture Victoria), and Jenny Davidson (SARDI Urrbrae)

The chickpea Ascochyta Blight fungus population is evolving to select increased frequencies of highly aggressive isolates. More aggressive isolates have contributed to increased susceptibility of all cultivars. When fungicides are used according to label rates and schedules recommended, they effectively protect the crop. We can slow down the rate of pathogen evolution by adhering to appropriate management practices such as fungicides and sensible rotations.

PREDICTA B update and new tests for 2018

Authors: Alan McKay (SARDI), Simon Simpfendorfer (NSW DPI), Gupta Vadakattu (CSIRO), Sean Bithell (NSW DPI), Kevin Moore (NSW DPI), Richard Daniel (Northern Grower Alliance), Cassy Percy (USQ), Jo White (USQ), Adam Sparks (USQ), Grant Hollaway (Agriculture Victoria)

Soil-borne pathogens most likely to pose the greatest risk to cereal crops in the northern region during 2018 include crown rot, common root rot and root lesion nematodes. PREDICTA®B has added new tests for ascochyta blight and phytophthora root rot of chickpeas, yellow leaf spot and white grain disorder of wheat, fusarium stalk rot of sorghum, charcoal rot of summer crops and arbuscular mycorrhizal fungi (AMF). Frequently more than one soil-borne disease exists within a paddock with the interaction between pathogens (e.g. Pratylenchus thornei and crown rot) exacerbating losses. PREDICTA B is assisting pathologists to understand these interactions to advise growers on management options to limit the impact of these disease complexes.

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