Trees provide many benefits to humans, such as shade, beauty, and resources for building and fuel. But trees also play a vital role in maintaining the balance of our ecosystem. Plus, they support a variety of species, clean the air, conserve water, and produce oxygen. They also help mitigate climate change, absorbing carbon dioxide from the atmosphere. Without trees, our planet would be vastly different and less habitable. You could say that they are the earth's lungs, and it's our responsibility to protect and preserve trees for future generations.

But while trees are essential to our ecosystem, there are times when they need to be removed for the safety and well-being of people and communities. For example, if a tree is diseased or dying, it can pose a risk to those around it by falling or dropping branches. Or in urban areas, trees may need to be removed to make way for new construction or to prevent damage to existing infrastructure.

However, it is essential to remember that tree removal should be a last resort and only be done after a qualified arborist has been consulted and all other options have been exhausted. Before removing a tree, it is important to consider alternatives such as pruning or cabling. And when a tree has to be removed, it should be done responsibly and sustainably, with plans to replace or replant trees in the area to maintain the balance of our delicate ecosystem.

Sadly there are many reasons why a tree must be removed; let's look at the main reasons why you must sometimes remove a tree.

When is a tree hazardous? The answer is simple, as soon as it puts people or property at risk. Usually, this is because the tree, or part of the tree, like a branch, could fall, damaging what is below. 

There are a few reasons why a tree might be classified as hazardous, let's take a look at the top 5 reasons:

1. Structural defects: these can be caused by rot, decay, or damage to the trunk or roots. The tree becomes weak and can cause the tree to fall or drop branches.

2. Disease or pests: infestations of insects, fungi, or other diseases can weaken the tree and make it more susceptible to falling or breaking.

3. Overcrowding: when multiple trees grow too close together and compete for resources, they can become weak and more prone to falling.

4. Location: if a tree is growing too close to a building, power lines, or other structures, it can be a hazard if it were to fall or drop large branches.

5. Size and species: some species are more prone to falling or breaking than others, and larger trees can cause more damage if they fall.

Most arborists will offer a hazard assessment service. But the sooner an arborist sees the tree, the more chance it won't need to be removed.

You'll see some of the above reasons listed again, like the following reason, disease; a diseased tree isn't always a hazardous tree, but it's still a reason to remove a tree. Let's see why.

Many diseases can affect a tree, for example, Australian Honey Fungus (Armillaria Luteobubalina), Myrtle Rust (Austropuccinia Psidii), Oak Wilt (Bretziella Fagacearum) or Cypress Canker, just to name a few. But the list of diseases is long!

Of course, a good arborist will offer a tree diagnostics and treatment service, but unless the disease is caught in time, the tree will have to be removed to stop the disease from spreading.

Tree diagnostics sets the pros from the amateurs, as it takes years of training and experience to diagnose a sick tree before it's too late. Why? Because often, the problem is deep below the surface, in the roots, and is easily missed by an untrained eye.