Other Plant Disease — Sweden
A new study from SLU shows how a resistant mutant of _Alternaria solani_, the fungus causing early blight on potato, has arrived in southern Sweden, and how it has grown more resistant ever since. Early blight is common in Swedish potato farming.
Strobilurins are commonly used against the disease, but reports of a drop in efficacy have emerged from several countries. An acquired resistance against the fungicide is linked to mutation F129L in the gene for cytochrome b. It was 1st described
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