Specific tests for certain regulated viruses are required for the certification of seed and planting material. However, the main limitation of this approach is that only these viruses are detected. Latent and/or unknown viruses, which can also have a significant impact on yield and product quality, remain unidentified. Especially in vegetative propagation material, this inevitably leads to the accumulation of such pathogens. High-throughput sequencing and bioinformatics analysis offers a global analysis of the phytosanitary status of plants.