Remembering de Gouret Litchfield

It is with great sadness that we announce the de Gouret Litchfield, ISA Board of Directors past president, passed away. The entire ISA family mourns this loss. On behalf of our Board of Directors, management team and employees, we extend our deepest sympathies to Litchfield’s family and friends during this difficult time.

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July Issue of Arboriculture & Urban Forestry Now Online

The July issue of Arboriculture & Urban Forestry Now Online!

In this issue:

  • A Comparison of Indirect Watering Devices for Benefiting Newly Transplanted Urban Trees
  • Numerical Analysis of Branch Mechanical Response to Loading
  • Physiological Response of Ash Trees, Fraxinus spp., Infested with Emerald Ash Borer, Agrilus planipennis Fairmaire (Coleoptera: Buprestidae), to Emamectin Benzoate (Tree-√Ąge) Stem Injections
  • Tree Growth and Gas Exchange Response of Ficus benjamina ‘Evergreen’ Cultivated in Compacted and Remediated Urban Soils Under Water Deficit Conditions

Read the full issue today!

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Image Database

ISA has a vast inventory of arboriculture- and urban forestry-related images that were compiled with the help of our members and volunteers.

Through a partnership with Forestry Images, ISA has thousands of photos and graphics available for use. ISA either owns the photos or has permission to permit their use.

Access the Image Database to browse the collection of images.

International Tree Climbing Championships

Press Releases

For inquiries about ISA news and media opportunities, contact our Communications Specialist.