Leonardo da Vinci’s sketch of a tree illustrates the principle that combined thickness is preserved at different stages of ramification. The math that describes the branching pattern of trees in ...

Approach every pruning situation by assessing the need for a professional arborist. Leave these tasks to the professionals who have both the equipment and advanced training for tricky pruning jobs.

Terrestrial laser scanning data show that trees move their branches in a diurnal pattern, settling down for the night -- as if falling asleep. Changes in the water status of leaves and branches causes ...