P. pini produces only one type of spores, basidiospores, which is also a type of sexual spores and the fungus overwinters as mycelium in diseased trees or dead trees. When decay is sufficient to provide enough resources, a new conk may be produced. Time from infection to conk production may be 10–20 years or more.
P. pini produces only one type of reproductive structures, basidiospores, which are also sexual spores. The fungus overwinters as mycelium in diseased or dead trees. When decay is sufficient, a new conk may be produced after an extended period, typically 10–20 years or more.