Ganoderma spp. causes mortality in several perennial tree species. There is no technique or methodology available through that we can easily detect the actual cause before the death of host plant.
According to Boddy, L. 2021 Fungi and trees, Ganoderma spp. do not cause tree death as it does not kill living tissue but only decays heartwood. I hva e no idea of an early detection technique for mortality caused by Ganoderma spp. I would rather like to ask you if you have a source that confirms that ganoderma spp. kill trees.