Introduction to wood pests:
Defects caused by various insect pests are called wood pests. Insects (wormholes): The pores of various insects, called wormholes or insect eyes.
Surface insect eye and insect ditch: refers to the insect eye and insect ditch with a radial depth of less than 10 mm.
Small wormhole: refers to the wormhole with a minimum diameter of less than 3 mm.
Large wormhole: refers to the wormhole with a minimum diameter of more than 3 mm.
The influence of insect pests on the material; surface pests and insect ditch can often be sawed together with the skin, so there is basically no effect on the use of wood; the scattered small insects have little effect; but the large insect eyes with a depth of 10 mm or more Deep and dense insect eyes can destroy the integrity of the wood and reduce its mechanical properties; and the insect eye is also an important channel for causing discoloration and decay of the sapwood.
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