What type of wood does brown rot primarily affect?

Brown rot primarily affects softwoods, which include species like pine, spruce, and fir. This type of decay is characterized by the breakdown of cellulose and hemicellulose in the wood, while leaving behind lignin, which typically gives brown rot its distinct brown color. Softwoods are particularly susceptible due to their anatomical structure and composition.

Unlike hardwoods, which are generally more resistant to decay, softwoods provide an ideal environment for the brown rot fungi to thrive, especially in conditions of high moisture. As the fungi colonize the wood, they can rapidly degrade it, resulting in significant structural damage. Understanding the specific vulnerability of softwoods to brown rot is essential for effective pest management and wood preservation, especially in construction and woodworking processes where the integrity of the material is crucial.