The effect of biofumigation is partly based on the release of natural toxic substances but also on their effect as a green manure plant. The effect of green manures and cover crops are explained in two Best4Soil videos and factsheets. This factsheet addresses biofumigation crops, like brassicas, sorghum and sorghum-sudangrass, as well as plant-derives biofumigation products. This tool may be interesting for practitioners wanting to fight soilborne pathogens, nematodes and weed seeds using the power of plants.