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Research finds SDHI-resistant Phoma strains

Scientists have identified resistance to some SDHI fungicides, raising future concerns over the control of phoma stem canker. Rothamsted Research screened populations of P. biglobosus collected from the UK and…

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Research finds SDHI-resistant Phoma strains

Scientists have identified resistance to some SDHI fungicides, raising future concerns over the control of phoma stem canker. Rothamsted Research screened populations of P. biglobosus collected…

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Research finds SDHI-resistant Phoma strains

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Scientists have identified resistance to some SDHI fungicides, raising future concerns over the control of phoma stem canker. Rothamsted Research screened populations of P. biglobosus collected from the UK and Poland. They found that 95% of UK isolates were resistant to the SDHI fungicides boscalid and fluxapyroxad, compared with just 6% of Polish isolates. Phoma stem canker can cause substantial yield losses in oilseed rape and is caused by two related fungal pathogens, Plenodomus lingam and P. biglobosus. While P. lingam has historically received greater attention, P. biglobosus has become increasingly important in UK and European crops. Some UK isolates…