spring lawn grass affected by grey snow mold typhula sp. in the april garden

mold snow garden grass lawn affected green leaves natural nature plant seasonal spring typhula affection bed botany covering dacha damage dense disease fungi fungus fusariosis fusarium gardenbed gardenplant grassplat graysnowmold herb herbal infection injury lawngrass mycelium net pathogen pathogenis saturation snowmold speckledsnowmold springgarden sward turfgrass typhulablight unhealthy vegetation autumn