Wood is widely used in furniture manufacturing, household products, construction, and handicrafts. However, in hot and humid climates such as Vietnam, mold growth on wood is a persistent concern for manufacturers and end users. Even wood that has been properly dried, stored in a warehouse, or surface-treated may develop white, green, or black mold spots after a period of time. Beyond affecting appearance, mold can compromise product quality, commercial value, and storage life. So, why does wood develop mold under high-humidity conditions, and what can be done to effectively control mold growth?