The world flower business is a highly dynamic industry and in Portugal yields around EUR 500 million a year (INE 2013). Root lesion nematodes (RLNs), Pratylenchus spp., are considered the third most important group of plant parasitic nematodes (PPNs) worldwide due to their large distribution, wide host range, and impact on economically important crops (Castillo and Vovlas 2007). The most recent report of RLNs p...