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Diseases, 07 May 2021
Summer crop disease breakthroughs
For the first time, researchers in Queensland have identified an insect vector for phytoplasma in grain legumes. They have also discovered asymptomatic host crops for Fusarium wilt in mungbeans and quantified the interaction with root lesion nematode.
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Diseases, 06 May 2021
Australian approach needed for Sclerotinia
Researchers are targeting sources of genetic resistance to Sclerotinia stem rot in canola germplasm. Management solutions tailored to Australian conditions are also being investigated.
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Diseases, 05 May 2021
DNA tests sharpen decision-making
DNA testing is now providing new insights that will help identify diseases causing pathogens and understand more about their behaviour and spread. The same technology is also behind a breakthrough that will see a commercial test for rhizobium rolled out to growers and researchers in 2021.
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Diseases, 03 May 2021
Broadleaf rise adds to disease profile
Viruses and Sclerotinia are two disease threats that have come under increased scrutiny in New South Wales in recent years. Both can easily fly under the radar with symptoms that are often indistinguishable from those caused by abiotic stress and herbicides.
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Diseases, 02 May 2021
Opportunities to expand blackleg resistance pool
New research has identified three major resistance genes for blackleg in canola, developed markers, and is working to better understand how minor gene resistance is expressed. Screening shows that one of these major genes is present in most historic and many current Australian varieties.
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Diseases, 01 May 2021
Disease services support pulse management
The SARDI pathology group has supported growers with a disease diagnostics service for accurate identification, disease surveillance and disease management advice. Information has included the timing of spore showers and how shifts in disease pathotypes impact on variety resistance.
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Diseases, 30 Apr 2021
Plan of attack for aggressive Ascochyta isolates
Ascochyta blight in chickpea has become more aggressive against commonly grown chickpea varieties such as PBA HatTrick (PBR), Genesis™ 090 and PBA Seamer (PBR). Studies into pathogen biology are targeting opportunities to develop better resistance and management recommendations.
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Diseases, 25 Apr 2021
Genome sequencing leaves plant viruses no place to hide
Researchers have developed an Australian first – a high-throughput genome sequencing diagnostic method for viruses in grains. The new method will support the quarantine and screening of imported germplasm and reduce the risk of introducing plant viruses into Australia.
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Diseases, 20 Apr 2021
Remembering the ‘Maharaja of wheat’
It was with great sadness that all those involved in the industry learned of the passing of Dr Sanjaya Rajaram, the “Maharaja of wheat”, at the age of 78, on 17 February in Mexico.
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Diseases, 16 Apr 2021
Surveys measure the disease challenge
Crop surveys enable the early detection of diseases in commercial crops and ensure that timely messages are provided to help growers and advisers protect crops. Disease build-up in 2020, due to wetter conditions across many areas, highlights risks for 2021.