Wood-stain diseases

Definition

Discoloration of wood caused by blue-stain fungi, primarily species of Ceratocystis and Ophiostoma. These fungi are often associated with bark beetles, which serve as vectors for the fungi.

Etymology

From the visible discoloration of wood and the association with fungal growth.

Example

Wood-stain diseases are a common problem in conifer trees and felled timber, often caused by blue-stain fungi associated with bark beetles.

Related Terms

• Blue-stain fungi
• Bark beetles
• Conifer trees
• Discoloration

Usage Notes

The discoloration is typically blue or grayish in color and can vary in intensity. These diseases can weaken trees and make them more susceptible to other pests and diseases.