Technical Articles

A Dog’s Life Calculation for a Tree
A Dog’s Life Calculation for a Tree ONE HUMAN’S YEAR EQUALS ABOUT ONE MONTH FOR A TREE All living organisms

Sudden Limb Drop
Nothing’s Ever Sudden In Trees During the early 1980’s, while working with Dr Alex Shigo on the reason for “Sudden

Tree Protection Zones
Tree Protection Zones (TPZ) were invented in the USA, based on American Species and American units of measurement. For Australia

Visualising The Death Process
A SLOW PROCESS The way a tree dies is through starvation. The tree / plant simply does not have enough

Starving With Green Leaves
Having a few green leaves on the end of a branch does not indicate health, prosperity or longevity. Such remnant

Soil Organic Layer
Woodland Management, Agriculture, Gardening and Grounds Maintenance causes the thin layer of topical organics to be depleted through; the conversion

Shigometry Decay, Decline & Vitality Assessment
All living organisms have an interplay with electricity. They use, transmit, absorb or generate electrical energy. All living cells have

Roots, The Plants Brains
Roots are the brains of the tree. It’s the roots that drive all the processes within the tree. The root

Planting Procedure
Planting Advanced Trees The success of planting any plants and particularly advanced trees is substantially dependent of proper planting procedures

Compartmentalisation Of Wounded Tissue
Trees are generation organisms, generating new tissue on the outside of the old tissue with each growth increment – Growth

Managing The Supply and Demand Of Energy
Dieback Short-term stress management is manifested by the dieback of the less productive and vital crown sections or iterations. This

Leaves Have a Productive Life
Over an ideal growing season a stem may grow say 1 metre and have leaves every 50mm down the stem.

Branch Attachment – Clamped Not Integral
In the picture to the left, Dr Shigo shows the progressive clamping of branches to trunks. The outer current growth

Included Bark – Structurally Very Poor Unions
Example:External and Internal View The first picture shows external view of twin leaders with included bark. Second picture shows internal

Planting Site Hygiene Following Tree Removal
Seldom are healthy trees removed, but when they are the residue of the bole and root system are still alive

Roots – Structural and Feeding
Roots of a tree serve three functions: Water and Nutrient Capture from the soil,Structural integrity – holding the tree up,