Oilseed rape set to be at high risk from disease

摘要

Light leaf spot is the number-one disease threat to oilseed rape crops, and it is likely to be big problem this season. David Jones looks at the latest advice on controllin the disease as the first step often starts with a November fungicide. Many oilseed rape crops will be at high risk from light leaf spot disease this autumn due tofavourable cool, wet weather and inoculum carryover from last season's harvest.Light leaf spot is the crop's most damaging disease, costing about ￡140m/year, and can take as much as lt/ha off rapeseed yields in severely infected crops.