You can use a chainsaw, but it won’t remove the entire stump or root ball and is not a recommended method. It takes quite a bit of physical work to achieve and will likely dull or ruin your chainsaw. Instead, consider using salt, herbicide, light deprivation, boiling water, stump grinding, or burning to kill a tree stump. These methods allow you to kill a stump using minimal machinery and physical exertion.

Not every arborist climbs trees, but most will do so if that’s the best method for assessing or treating a tree. Arborists have a variety of tree climbing gear and safety equipment to choose from when climbing trees. Consult your local arborist about their tree-climbing plan if your service requires that type of task.

A few signs a tree may be dead is if the leaves are dead and there are no signs of new blooms. You can also perform a scratch test on some of the branches to check the condition of the cambium layer beneath the bark.

If it is green, it is still alive, but if several are dry, brittle, and brown, the tree may be dying or dead. Always consult an arborist before assuming your tree is dead because you may be able to save it.

Poison oak is similar to poison ivy in that it's in the same family of plants. Poison oak is identifiable by its rounded-off leaves and hairy leaf texture. Tree-climbing varieties live primarily in western states while low-growing poison oak bushes occupy the eastern states. Treat poison oak like poison ivy to get rid of it permanently.