BioWorks RootShield Granules Biological Fungicide, 40 lb.RootShield Granules (G) is more than your typical biofungicide. RootShield G helps roots grow faster and stronger enabling your crops to fight off a broad range of diseases under a wide range of conditions. RootShield grows in soils and on roots, shielding them against root damaging fungi, promoting healthier roots and increasing root mass potential. It provides preventative control of major root rot and damping off diseases, including soilborne