Which type of decay fungus is not associated with treatment?

Sapstain fungi are primarily responsible for discoloration of wood but do not actively decay or break down the cellulose and lignin that provide structural integrity. Their presence indicates a level of moisture in the wood, which can lead to decay under certain conditions, but these fungi themselves do not cause significant structural damage. This contrasts with other types of decay fungi, such as brown rot and wood-rot fungi, which actively break down wood components, leading to structural deterioration.

In pest control and wood treatment contexts, the focus is often on preventing or treating active decay caused by fungi that weaken wood. Because sapstain fungi do not contribute to structural decay, they are not typically addressed in the same treatment strategies as more destructive fungi. Understanding this distinction helps pest control operators prioritize their approaches based on the type of fungal threat present.