关于在火炬松人工林里,多年异担子菌或松根层孔菌(Fomes annosus(Fr)Karst)与SPB的侵害有一定关系的材料已有报道。这项研究的目的是确定SPB侵害的火炬松比未受其害的火炬松表现较严重的被压状态,这种被压是由于在SPB侵害以前,多年异担子菌就已长时间定殖的结果。被压状态表现为其径向生长的降低。 Materials that have been implicated in the development of SPB for many years in Pinus taeda plantations have been reported (Fomes annosus (Fr) Karst). The purpose of this study was to determine that the SPB-infested Pinus pine was more severely stressed than the unaffected loblolly pine, which was suppressed due to years of long-term colonization of heterophobia before the SPB attack result. The state of being pressed is manifested as a decrease of its radial growth.