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Technical reports

  • All 320
  • Environmental factors and damage 50
  • Fertilization and soil management 34
  • General information 106
  • Insects and pests 82
  • Plant health care 91
  • Tree diseases 81
  • Tree management and consulting 15

Tree risk assessment overview & options

Canada, United States

This guide outlines the three ISA levels of tree risk assessment, from visual inspections to advanced diagnostics. It he…

Tree support systems

Canada, Great Britain, Ireland, United States

Tree support systems are used to provide supplemental support to leaders, individual branches and/or entire trees. Cable…

General information

Tree tags (FAQs)

Canada, United States

Answers to common questions about tree tagging during inventories or assessments, including impact on tree health and ta…

Tree tags (arboretum style options)

Canada, United States

Showcases custom arboretum-style tree tag designs with QR codes linked to ArborScope™ inventories. Perfect for education…

Trees for alkaline soil

Canada, United States

Trees adapted to high pH or alkaline soils can absorb necessary macro- and micronutrients. View t…

Environmental factors and damage
General information

Trees for poorly drained soil

Canada, United States

View a list of tree species tolerant of poorly drained soils, including red maple, river birch, London plane tre…

Environmental factors and damage
General information

Tubakia leaf spot

Canada, Great Britain, Ireland, United States

Tubakia leaf spot, also known as Actinopelte leaf spot, is a late season fungal disease that commonly attacks oaks, p…

Tree diseases

Tuliptree scale

Canada, United States

The tuliptree scale, Toumeyella liriodendri (Gmelin), is an insect in the family of Coccidae, the soft scales. This s…

Insects and pests

Two-lined chestnut borer

Canada, United States

The two-lined chestnut borer, Agrilus bilineatus, is a common secondary invader of oak, beech, hornbeam and chestnut …

Insects and pests

Understanding prescription fertilization

Canada, United States

The Bartlett Tree Research Laboratories now return all soil analysis reports on the Soil Rx Analysis Report. The repo…

Fertilization and soil management
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