It’s worth considering the effect climbers have on trees like roses or ivy. The climber often becomes difficult to manage from the ground and can if left unpruned begin to impact negatively on the trees ability to photosynthesis . Our job over the weekend was clearing two cedars consumed by a large climbing rose , most of the work was getting the rose out and beneath the tree had lots of dead branches and probably had a much larger sail area due to the huge rose plant growing in the crown.
Ecological Tree Surgeons 