Veon Arboriculture examined this mature black pine (Pinus nigra) which lost one of its co-dominant stems, resulting in a large tear wound down to its base, leaving it exposed to dysfunction. Subsequently, Dyer’s mazegill (Phaeolous scweinzii) has developed, causing an extensive brown rot through the stem.
Even with circa 60% the circumference of the vascular system gone, the remaining crown is in good physiological condition with a full crown, suggesting that component parts of the tree are acting independently (sectorality) – a trait more common in broadleaves than conifers, so the co-dominant stems likely influenced this.
In its current setting, Veon Arboriculture recommended retaining this tree as it is in a low risk area and there is sound wood on the remaining stem’s side (the tree still standing is testament to that); however, this site is to be developed and the tree may need to be removed.
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