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Neonic sugar beet derogation unlikely to be triggered >More in © Tim Scrivener Significant cold weather in January and February has increased the likelihood that the emergency derogation for the use of a neonicotinoid seed treatment to control virus yellows in sugar beet will not be triggered this season. The derogation is based on a Rothamsted virus model predicting that over 9% of the sugar beet crop will be infected with virus yellows by the end of August. It uses a combination of winter temperatures with aphid population dynamics to make a forecast on 1 March. A preliminary forecast released by the British Beet Research Organisation (BBRO) said there was now only a 16% chance that the 9% threshold will be reached when the final forecast is made. By contrast, last season the model predicted that 70-90% of the crop would be affected by virus yellows.

United kingdomLong suttonTim youngSimon bowenTim scrivenerDavid hoylesBritish beet research organisationஒன்றுபட்டது கிஂக்டம்நீண்டது சுட்டன்நேரம் இளம்சிமோன் குனிபிரிட்டிஷ் பீட் ஆராய்ச்சி ஆர்கநைஸேஶந்