Pest identification and confirmation—Dematophora
The white mycelial growth characteristic of Dematophora root rot may sometimes be confused with the mycelial
fans produced by Armillaria root rot. Armillaria root rot forms characteristic white mycelial plaques
between the bark and wood. These distinctive white fans have a mushroomlike odor and are visible when
the bark is removed from infected roots and the lower trunk. The mycelial patches characteristic of Dematophora
root rot are much smaller than Armillaria mycelia and lack the mushroomlike odor.
fans of Armillaria root rot
patches of Dematophora root rot