Pruning trees
Introduction to tree pruning
How to use this Minimum Industry Standard
1: Pruning considerations
Tree health considerations
The tree as a living organism
Tree species
Foliage retention: loss of photosynthetic material
Tree growth habits
Pruning impacts: physiological impacts
Compartmentalisation and barriers to decay
Occlusion
Age and health of tree
Biosecurity and transmission of pathogens
Timing of pruning operations
Tree structural considerations
The tree as a biomechanical structure
Axiom of uniform stress
Thigmomorphogenesis
Strategy of flexibility
Foliage distribution
Foliage distribution: torsional failure
Foliage distribution: mass damping
Foliage distribution: interconnectedness and environmental exposure
Growth habit and structure
Branch and stem attachment
Ecological considerations
The tree as a keystone structure
The ecological value of deadwood
Retention of habitat
2: Pruning operations
Pruning specifications
R: Reduction pruning
Crown reduction
T: Crown thinning
AC: Asset clearance
Asset clearance: vegetation management around electrical conductors
Vegetation management around utility infrastructure
C: Crown lifting
RA: Risk abatement pruning
Risk abatement pruning practices
D: Deadwood removal
WR: branch or stem weight reduction
Weight reduction: thinning
Weight reduction: reduction pruning
Pruning classes for weight reduction
Weight reduction pruning techniques
H: Remedial pruning
RT: Retrenchment pruning
Developing a retrenchment plan
Example retrenchment pruning plan: exotic species
Example retrenchment pruning plan: typical Australian species
F: Formative pruning
SP: Structural pruning
ER: Epiphyte / parasite and vine removal
P: Pollarding
PP: Palm pruning
Poor pruning practices
Lopping and topping
Flush cutting
Wound painting
3: Conducting pruning
Tree pruning permits and tree protection laws
Tools and equipment for tree pruning
Biosecurity measures
Clean On / Clean Off procedure
Tree access for pruning
Making pruning cuts
Bad working positions
Good working positions
Pruning cut sequence
Pruning cuts
Branch reduction cuts
Stem reduction cuts
Branch removal cuts (living branches)
Branch removal cuts (deadwood)
Fracture pruning and coronet cuts
Root pruning
Completing tree works
Processing debris
Completion of works
The care of trees