Zone 1: High Use Urban Forestry Areas
Features: Trees in high traffic areas such as public plazas, gateways, high visitation
parks, well developed park areas, view areas, other public access areas and other
properties with reasonably high visitations. Trees are generally in highly visible
landscape beds or turf areas.
Pest Management: The control objective is for problems to be either reduced or
observed at a very early stage and controls applied when thresholds are
Insects and Disease: Assess insect and disease populations and identify organisms,
establish proper timing of controls, and apply as thresholds are exceeded.
Controls are applied when disease or insects are inflicting noticeable damage,
reducing vigor of plant materials, or could be considered a risk or bother to the
public. Some minor problems may be tolerated.
Zone 2: Medium Use Urban Forestry Areas
Features: Associated with trees in locations of moderate to low levels of
development and/or moderate to low levels of visitation. Examples include trees
in landscape beds, turf areas, medians, transportation trails, (e.g. the Interurban
Trail), interpretive trails, park areas, adjacent to waterways, and golf courses.
Pest Management: Controls are for epidemics or considered when serious
indications are noted, or verified concerns are communicated. Control measures
may be put into effect when the health or survival of the plant material is
Insects and Diseases: Apply controls for disease or insects that are inflicting
noticeable damage, reducing vigor of plant materials or could be considered a
bother to the public. Some minor problems may be tolerated.
Zone 3: Low Use Urban Forestry Areas
Features: Moderately low level usually associated with low level of development,
low visitation, undeveloped areas or remote parks, trees in wooded areas, green
belts, and forested areas with developed trails areas designated as scenic view