After initial contact with a living root, the mycelium grows on the bark, extending only a few millimeters into the surrounding soil.

It eventually penetrates through the host’s cambium and grows inside the wood causing decay and death of living cells in the heartwood and sapwood.

[5] In all cases of the disease, thorough study of the distribution and intensity should be determined to help choose a management practice that’s cost effective.

[7] Other management tools include: The trees die from failure to take up water and nutrients because the main roots are decayed.

It is estimated that Laminated root rot reduces timber production by about 4.4 million cubic meters annually.