Poorly formed junction has developed a split...

... leading to a failure and non-viable crown

Psyllid galls of Schedotrioza distorta on E. petiolaris

Great lengths (and expense) to imprison this tree... Tight staking prevents growth-stimulating movement and damages bark. The cage will cause mechanical damage on branches and the grill will girdle the trunk when the tree grows.

Mulberry leaf spot

Extensive rot revealed in failed branch.

Swamp Mallet toughing out root suffocation.

Topped/butchered Liquidamber with masses of crowded, weakly attached sprouts.

Past pruning without follow-up has created this hot mess with the shoot growing back into tree.

Oops. Lucky no one was out playing during the storm.

Corymbia battles against pavement right up to the stem.

Roots of this Red Gum planted into a confined space overgrow concrete.

Red Gum windthrow due to saturated soil conditions in a wet winter.

Borer tunnel revealed in broken log.

Confused jumble of fused branches.

Borer attack causes extensive cambium dieback.

Hibiscus leaf spot.

Suspected Mundulla Yellows or other systemic issue in this urban Mugga Ironbark.

Proliferation of sprouts in response to tip-pruning in this Corymbia.

No disease here. A young Drooping Sheoak bursts beautifully into cork.

Aftermath of a borer (Phoracantha) attack survived by this Blue Gum.

Melia azedarach branch with extensive rot failed in storm.

'Elephant's Ear' growth in response to a weak junction.

Hot mess could have been avoided with formative pruning.

Large Ganoderma conk on Peppercorn Tree with extensive heartrot.

Wasp galls on Acacia longifola, caused by active larvae of Trichilogaster acaciaelongifoliae.

Stem failure of a multi-trunked tree in storm linked with past borer activity and root rot.

Evidence of Armillaria infection in failed Pinus radiata.

Longicorn beetle emerges from Pinus radiata...

... fully emerged adult.

Ouch!

Crepe Myrtle with mechanical damage from the solid cage installed as protection.

Non-ideal pruning technique.

Pittosporum tenuifolium Screen Master hedge left to grow out now a row of trees.

Always room for a tree.

Topped tree with masses of weak shoots reclaiming lost height.

Crown of young eucalypt with built in timebomb.

Tree in shackles.

Melia with roots exposed and damaged from gutter repairs.

Hot mess of a Golden Rain Tree sorely missing formative pruning.

Bacterial wetwood.

Phellinus conks on a decaying street tree of Melia azedarach.

Canker on Harpullia pendula, fungal and/or sun scald.

Opportunisitc borer damage on trunk of Red Gum with roots disturbed by excavation.

Don't you just want to trim it off? E. sideroxylon.

Non-viable trunk on this Casuarina after failure of a bark-incuded junction.

Incuded bark and tree's attempt to occlude splitting revealed in the same Casuarina failure.

Trees - ideal places to store bins and toilets.

Cut through pine trunk shows bark-included junction (centre) and sound junction with interlocking fusion of tissues above.

Overzealous large cut at base of this Agonis has created a mass of sprouts that need to be dealt with.

Girdling root.

What to do with this?

And what to do here?

Defect prone to failure caused by past pruning.

Mechanical car damage on city street tree.

Lage root damaged by repeat mowing, leaving it exposed to decay.

Death sentence. How long does this tree have?

Not the best way to treat your Blue Gum street tree.

Over-staking prevents growth-stimulating movement and damages the tree.

Longterm result of severe past topping of an Angophora floribunda, resulting in excessive growth and weight on each scaffold limb and unnatural habit.