It's more than seven years since a key fungal disease that affects oilseed rape crops was first confirmed in UK crops and farmers are being warned it could get much worse, reducing yields in crops.Verticillium wilt infections in oilseed rape last summer were at a similar level to the previous year, according to a Defra-funded nationwide survey by Fera. But the weather-dependent disease could take off ifwarm autumns and mild winters become more common, warns Fera's Judith Turner.
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