Is your tree a weed?
When we think of weeds in the yard, we very rarely consider the trees around us to be hazardous to our environment and other flora in the area. Just like the plants that we normally classify as weeds, such as lantana, a weed tree can be an introduced species that possesses high germination rates that allow it to rapidly grow and colonise areas.
An issue with this fast colonisation means that it can tip the balance of your local ecosystem and alter the landscape. Over time, the shape and size of a tree is determined by its competition and environment. If a taller growing tree is introduced to an area that is populated by short natives, it can propagate and start to starve the existing trees of light. This causes the trees to wither and die out while the introduced species thrives.
While this means the destruction of our native species of trees, it can also upset the ecosystem that it shares with native fauna. If an animal forms a relationship with a certain tree species, its removal means that the animal is left to wander the ground where predators and other dangers can cause its demise.