Agarwood can grow only when the tree has fungal infection. When agarwood trees are damaged either naturally or artificially, fungus enters the tree. As the fungal infection progresses, the tree produces a dark aromatic resin in response to the fungal attack, which results in a very dense, dark, resin embedded heartwood. Here, fungi only spreads primary infection and does not multiply or attack the entire tree. Also, the tree doesn’t spread or give rise to any kind of fungus.

Agarwood can grow only when the tree has fungal infection. When agarwood trees are damaged either naturally or artificially, fungus enters the tree. As the fungal infection progresses, the tree produces a dark aromatic resin in response to the fungal attack, which results in a very dense, dark, resin embedded heartwood. Here, fungi only spreads primary infection and does not multiply or attack the entire tree. Also, the tree doesn’t spread or give rise to any kind of fungus.