AS 4373-2007

1 - AS 4373-2007 PRUNING OF AMENITY TREES
4 - PREFACE
5 - CONTENTS
6 - FOREWORD
7 - 1 SCOPE
7 - 2 APPLICATION
7 - 3 DEFINITIONS
7 - 3.1 Amenity trees
7 - 3.2 Arborist
7 - 3.3 Australian Qualification Framework (AQF)
7 - 3.4 Bark
7 - 3.5 Branch
7 - 3.6 Branch bark ridge
8 - 3.7 Branch collar
8 - 3.8 Bud
8 - 3.9 Codominant stems
8 - 3.10 Compartmentalization
8 - 3.11 Coppicing
8 - 3.12 Crown
8 - 3.13 Crown lifting
8 - 3.14 Crown maintenance
8 - 3.15 Crown modification
8 - 3.16 Crown thinning
8 - 3.17 Deadwooding
8 - 3.18 Decay
8 - 3.19 Epicormic bud
8 - 3.20 Epicormic shoots
8 - 3.21 Espalier
8 - 3.22 Extruded bark
9 - 3.23 Feathering
9 - 3.24 Final cut
9 - 3.25 Flush cut
9 - 3.26 Formative pruning
9 - 3.27 Hanging branches
9 - 3.28 Included bark
9 - 3.29 Lateral
9 - 3.30 Lion's tailing
9 - 3.31 Lopping
9 - 3.32 Natural target pruning
9 - 3.33 Pathogen
9 - 3.34 Person suitably experienced and competent in arboriculture
9 - 3.35 Pleaching
9 - 3.36 Pollarding
9 - 3.37 Pre-cutting
10 - 3.38 Reduction pruning
10 - 3.39 Remedial (restorative) pruning
10 - 3.40 Selective pruning
10 - 3.41 Stem
10 - 3.42 Stem bark ridge
10 - 3.43 Topiary
10 - 3.44 Topping
10 - 3.45 Tree
10 - 3.46 Tree worker
10 - 3.47 Trunk
10 - 3.48 Wound
11 - 4 CONSIDERATIONS BEFORE PRUNING
11 - 5 PRUNING PROCEDURES
11 - 5.1 Equipment
11 - 5.2 Disinfection
11 - 5.3 Pre-cutting
11 - 5.4 Final cut
12 - 5.5 Branch lowering or dropping
12 - 5.6 Hanging branches
12 - 6 FOLIAGE DISTRIBUTION
12 - 6.1 Growth habit
12 - 6.2 Amount removed
12 - 6.3 Weight distribution
12 - 6.4 Crown distribution
15 - 7 PRUNING CLASSES
15 - 7.1 General
15 - 7.2 Crown maintenance
15 - 7.2.1 General
15 - 7.2.2 Deadwooding (D)
16 - 7.2.3 Crown thinning (T)
16 - 7.2.4 Selective pruning (S)
16 - 7.2.5 Formative pruning of young trees (F)
17 - 7.3 Crown modification
17 - 7.3.1 General
17 - 7.3.2 Reduction pruning (R)
18 - 7.3.3 Crown lifting (C)
18 - 7.3.4 Pollarding (P)
19 - 7.3.5 Remedial (restorative) pruning (H)
19 - 7.3.6 Line clearance (L)
19 - 7.4 Pruning of palms
20 - 8 UNACCEPTABLE PRACTICES
20 - 8.1 Lopping and topping
20 - 8.2 Wound painting
20 - 8.3 Flush cutting
20 - 9 ROOT PRUNING

Specifies methods for pruning of trees and provides guidance on correct and uniform practices intended for use on amenity trees.

This Standard specifies methods for pruning of trees and gives guidance on correct and uniform practices. It is intended for use on amenity trees, including palms, and includes removal of deadwood, crown lifting, formative pruning, reduction pruning (including line clearance), selective pruning, crown thinning and remedial or restorative pruning. It does not include practices related to timber, foliage, fruit and flower production, chemical pruning nor to sculptural forms of pruning such as topiary, espalier, hedging and pleaching. The Standard does not include specific information on wildlife habitat or safety of the tree worker.

Originated as AS 4373-1996.
Second edition 2007.