Armillariella May 2026

Despite their beneficial role in decomposition, Armillaria is one of the most destructive root rot pathogens globally, affecting over including conifers, hardwoods, and even some herbaceous plants.

: As saprotrophs, they are vital for carbon and mineral cycling, breaking down dead wood in unmanaged forests. 2. Armillaria Root Disease armillariella

: A single colony of Armillaria ostoyae in Oregon's Malheur National Forest covers roughly 2,200 acres (3.4 square miles). It is estimated to be between 2,400 and 8,650 years old. Despite their beneficial role in decomposition