Archive Nut, Prune and Olive Programs

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Evaluating the Risk of Tree Failure

In some instances old mature trees can suffer from some mechanical defects and represent a hazard for people and property (Lonsdale, 2000). Falling tree branches can severely injure people and create serious damage to nearby vehicles and buildings.
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Mature Trees at the WUI Interface - Managing Oak Woodlands

Background and Importance Extending over vast areas of the state, hardwood rangelands are characterized by overstory canopy of hardwood tree species (predominantly oak) at least 10% cover, with an understory of annual grasses, forbs, and native perennial grasses at lower elevations, and intermixed w...
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Western Chapter ISA / ITFD Tree Failure Form On-line

Hello there tree failure report program cooperator! You have found the on-line home of the fillable tree failure report form (the ITFD form). Please note instead of a single form covering all three types of failures - trunk, root, and branch - we have three separate forms.
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Mature & Historic Tree Stands in the Urban Environment

What is an urban stand? The term urban forest refers to all publicly and privately owned trees within an urban area including trees planted in backyards, tress planted along roads, parks and recreational areas, or tree stands that are remnants of forests (Nowak et al. 2001).
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Overview

Mature trees are iconic landscape features, important historic resources tied to the cultural heritage of a place, and linked to numerous environmental and social benefits.
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Mature & Historic Tree Stands at the Wildland-Urban Interface (WUI)

Definition of Wildland Urban Interface (WUI) A wildlandurban interface (or WUI) refers to the transition zone between vegetated areas (unoccupied areas) and the human built environment (developed areas). Communities that are within 0.5 miles of the zone may also be considered part of the WUI.
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Introduction

What are mature and historic trees? Definition - Mature and historic tree stands are identified and evaluated based on a combination of characteristics including their size, age, species, ecological value, aesthetics, location, and historical significance (Swiecki and Bernhardt, 2001).
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Eucalyptus in California

With over 700 species, Eucalyptus is a diverse genus of flowering trees and shrubs part of the Myrtaceae family.
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Mount Sutro - Vegetation Management Plan

Background The Mount Sutro Open Space Reserve (Reserve) was designated in 1976 as permanent open space to be kept free of any permanent structures or facilities except footpaths and appropriate landscape construction intended to enhance its use as a natural area (HortScience et al., 2017).
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