For decades, the myth has persisted that a copper nail driven into the trunk can kill a tree. Is there any truth to this claim?
Home and garden owners often face this dilemma: the green canopy of a tree absorbs too much sunlight, the autumn leaves become a nuisance, and the space occupied by the tree might be better used for a swimming pool.
So, what should you do when the green giant becomes a nuisance and needs to be removed? The myth suggests that a copper nail driven into the trunk should act quickly and kill the plant. But is there any truth to the idea that a tree dies from a copper nail?
For generations, rumors have circulated that a small copper nail can bring a tree to its knees. The heavy metal ions in copper could be deadly to some plants and animals, implying that driving a copper nail into the trunk would eventually kill the plant, making it easier to cut down.
In reality, to legally cut down a tree, you need an official permit. To obtain one, you must provide valid reasons. Illegally cutting down a tree can result in heavy fines. Moreover, tree protection regulations often restrict tree removal to between October and March.
Scientists Prove: Copper Nail Cannot Kill a Tree
Anyone hoping that a copper nail will solve their tree problem is likely to be disappointed. As early as 1976, scientists from the University of Hohenheim conducted experiments to debunk this myth. They drove up to eight copper nails into various tree species such as firs, elms, birches, and ash trees. The experiment also included nails made of lead, iron, and brass on other healthy trees.
In all cases, the trees remained intact. The trees simply isolated the injuries in the wood, preventing harmful substances from penetrating the interior. Only the areas where the nails were driven showed slight discoloration. Thus, driving a copper nail into a tree to kill it is ineffective.
So, if you really need to cut down a tree, it’s best to follow the official route. Remember that trees are incredibly important to humans, animals, and the environment. They filter carbon dioxide from the atmosphere and convert it into essential oxygen through photosynthesis. Trees are vital, while a swimming pool is not.
