Brown rot in four seed potato batches in the Netherlands

The NVWA has now started an investigation into the new finds. It is already clear that 22 companies spread across seven provinces are involved in the brown rot finds. These are companies in Groningen, Friesland, Drenthe, Gelderland, Flevoland, Noord-Holland and Zeeland. In all four finds, surface water is a possible source of contamination, the NVWA reports. In addition, storms that spray contaminated surface water over the plots appear to be an important source of risk. In a few cases, irrigation on adjacent plots may also be the cause. According to the NVWA, there have been more finds of the brown ...