The articles
How to tell if a tree is dead or dying — the observable signs, the scratch test, what crown dieback actually indicates, and the difference between a stressed tree that will recover and one that will not.
Signs a tree needs to be removed — structural defects, root plate movement, decay indicators and the situations where removal is genuinely the only remaining option.
When to trim vs when to remove a tree — the decision framework, what pruning can and cannot fix, and why topping a eucalypt creates a bigger problem than it solves.
Tree diseases common on the Central Coast — the pathogens and pests that actually occur in coastal New South Wales, what they look like, and which ones are treatable.
Seasonal tree maintenance checklist — what to do in each season on the Central Coast, built around the October to March storm season rather than a northern hemisphere calendar.
Why local matters
Most tree advice online is written for the northern hemisphere. It talks about fall clean-up, frost protection and diseases that do not occur in Australia, and it is worse than useless if you are looking at a spotted gum in Erina.
These articles are written for this coast: the species that actually grow here, the failures that actually happen, the single Central Coast Council permit regime, and a storm season that runs through summer rather than winter.
What these articles will not do
None of them will diagnose your tree. Tree assessment is a hands-on trade and the things that decide whether a tree stays or goes — the state of a union under bark, the extent of decay behind a cavity, whether a root plate has moved — are not visible in a photograph and are not covered by a general description.
What the articles will do is tell you what to look for, what the signs actually mean, and what questions to ask the person who comes out. That is worth having before a contractor arrives, because the difference between a good tree job and a bad one is usually decided in the conversation rather than in the cutting.
If something on your property concerns you, ring (02) 4306 7828 and have it looked at.
What to do next
If you have identified a problem, the tree removal page explains the methods and the regional guide covers permits and pricing. If you want the commercial and legal detail — costs, council approval, insurance, techniques — that is in the guides library.
For conditions specific to your suburb, the service area index has local notes from Gosford through to the northern lakes.
Frequently asked questions
What should I read first if a tree worries me?
Start with the article on telling whether a tree is dead or dying, because it covers the observable signs you can check yourself in ten minutes. If the tree is clearly in trouble, move to the signs a tree needs removing. If it is healthy but in the wrong place or too big, the trimming versus removal article is the relevant one.
How is the blog different from the guides section?
The blog covers tree biology, condition assessment and maintenance — how to tell what is wrong with a tree and what to do about it. The guides section covers the commercial and legal side: what work costs, what councils require, what insurance covers, and how the equipment and techniques work. Most people need both, in that order.