Virginia Creeper climbing a pine tree
Is it a parasite, sucking the sap and killing the pine tree, or is using the tree only for support,
Virginia creeper does not dig into tree bark so it does not directly harm the plant. If it is allowed to grow unchecked, there are 2 potential problems. The leaves may block sunlight to parts of the tree which may cause shaded needles to decline; and a large creeper vine can girdle the trunk but this is not common. Cutting the vine every few years will keep the size manageable and safe.