Variety ‘watch list’ for wheat yellow rust released



Written by Charlotte Cunningham

AHDB has issued a yellow rust watch list to help flag winter wheat varieties most likely to perform out of line with the disease ratings published in the Recommended Lists. Charlotte Cunningham reports. The watch list, which orders varieties based on yellow rust levels from the three worst RL trials (for each variety), can help identify those most likely to benefit from closer monitoring, says the levy board. It follows the development of a new rating calculation approach that better reflects the diverse and dynamic nature of the UK’s rust populations, announced at the launch of the online edition of the RL 2021/22 in Dec. Discussions on the latest twists and turns in the yellow rust story will also feature as part of the UK Cereal Pathogen Virulence Survey (UKCPVS) stakeholder meeting, which takes place online on 12 Mar 2021. Catherine Harries, who manages disease research at AHDB, said: “The online wheat yellow rust watch list provides a way to flag unusual levels of yellow rust seen in some varieties in some trials, compared with what the headline disease rating would otherwise suggest. This extra layer of information can provide a valuable early warning of a potential change in the…
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