While the recent snow and cold temperatures may have slowed growth, it’s unlikely to translate into significant crop losses. It is now a case of protecting that potential for an effective return.
Whilst Sclerotinia is usually the main disease to affect OSR plants at flowering, light leaf spot (LLS) continues to increase in terms of incidence, severity and geographical spread.
2015 ADAS flowering trial suffered severe late season light leaf spot (85% untreated stems infected with LLS) but only 3% Sclerotinia.
One 2015 ADAS WOSR flowering trial in Rosemaund. Disease in untreated = 3 % Sclerotinia and 85 % stem based LLS recorded post harvest. LLS in untreated in June = 30%. LSD 0.362 Untreated yield = 6.17 t/ha. No LLS recorded in the autumn.
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Well you can for free thanks to SpotCheck, a collaboration between Bayer and ADAS with extensive support from the Association of Independent Crop Consultants (AICC). ADAS will be undertaking leaf assessments sent in by growers to make a conclusive diagnosis on what is a very difficult disease to identify.