Which of the following is NOT considered a wood decay fungus?

Blue Stain Fungi are not classified as wood decay fungi. Instead, they are referred to as sapstain fungi, which can discolor wood but do not break down its structural integrity. While they can be detrimental to the aesthetics of the wood and diminish its market value, they do not cause the same extensive degradation that is characteristic of true wood decay fungi.

In contrast, Pecky Cypress, White Pocket Rot, and Poria incrassata are all types of wood decay fungi that actively degrade lignin and cellulose in wood, leading to significant structural damage. Understanding the distinctions between these types of fungi is essential for effective pest control and wood preservation practices, as it informs the methods and treatments needed to protect wood structures from fungal damage.