Bactrex is a dry, water-soluble powder containing a large number of beneficial soil and root microbes (including 6 strains of Bacillus spp.), fungi (Trichoderma) and actinomycetes. These ingredients are specially selected for their favorable effect on soil structure and fertility. These specialized root bacteria are “packaged” in soluble Yucca extract and organic catalysts to guarantee a rapid colonization and growth in the root zone.