Direct Answer • Key Takeaway
To Prevent Honey Fungus Spreading to Unaffected Areas, a Physical Barrier Such as a 45Cm (18In) Deep Vertical Strip of Butyl Rubber (Pond Lining) or Heavy Duty Plastic Sheet Buried in the Soil Will Block the Rhizomorphs. It Should Protrude 2-3Cm (About 1In) Above Soil Level.