Written by Charlotte Cunningham
The majority of oilseed rape-growing counties across the UK recorded positive results for light leaf spot disease in leaf samples sent to Bayer’s SpotCheck service from October 2020 to March 2021. Charlotte Cunningham reports. The wet conditions in the autumn and winter drove early light leaf spot infections and despite the extended period of cold weather during late winter and early spring, disease was evident in a significant number of samples. Additionally, positive samples were received from crops across the UK, not just northern areas where the disease has historically been more prevalent. The SpotCheck service is in partnership with ADAS and the Association of Independent Crop Consultants (AICC) and Philip Walker, plant pathologist at ADAS summarised the results from this cropping season. “The SpotCheck initiative ran from October 2020 to March 2021 and during that period 644 samples were assessed by ADAS. “The percentage of positive samples after incubation increased over the winter and spring, with results in December showing 76% incidence, 68% in January, and 92% in February. In March, ADAS assessed 163 samples, with 97% showing positive signs of light leaf spot, despite the colder winter weather and many of these crops receiving an autumn fungicide application.”…
The post SpotCheck 2020-21 results demonstrate prevalence of light leaf spot across UK appeared first on cpm magazine.
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