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Vancouver urban trees

Compendium of Best Urban Forest Management Practices

Chapter 9. Maintenance: Watering, Mulching, Fertilizing, Cabling, Bracing, Recognition/Removal of Hazard Trees


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The greatest stress on newly-planted (and sometimes established) trees is water stress. Watering can be the most important part of tree maintenance. Related to watering, mulching acts to conserve water on site, keep mowing equipment from damaging trees and minimizes compaction: a common problem in urban soils. Fertilizing urban trees is a common practice to ensure that proper nutrients are available to the tree in nutrient-poor city soils. Cabling involves the installation of wires high in the canopy to allow one tree’s branches to support another. Bracing is the installation of large bolts to keep trees from splitting open. Recognizing and removing hazard trees is an important part of urban forest management.

Websites

The Green Pages of the Montreal Botanical Garden
Tree Watering Tips: City of Edmonton, AB
Watering Your Tree: City of Ottawa, ON
How to Install a Direct Cabling System in Ornamental Trees
Tree Care Guide: Manitoba Hydro

Online documents (.PDF or .DOC)

Maintaining Healthy Urban Trees, Landowner Resource Centre (Ontario)

Non-Canadian sites & resources

Proper Mulching Techniques, ISA
Trees and Turf, ISA
Preparing Trees for Winter, Seattle, WA
Winter Tree Watering Guidelines for Denver
Fertilizing Urban Trees, State of Maine, US
Tree Fertilization: A Guide for Fertilizing New and Established Trees in the Landscape, University of Minnesota
Fertilizing Trees and Shrubs, Virginia Polytechnic University
Fertilizing Trees and Shrubs in the Landscape, University of New Hampshire

Bibliographical Resources:

Siewert, A., Siewert, A., Rao, B., Marion, D. (eds.) (2003). Tree and Shrub Fertilization: Proceedings from an International Conference on Tree and Shrub Fertilization. International Society of Arboriculture. 164 pp.

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