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April 2020

April 6
Oregon City, OR

How to Manage and Prune Trees for Wildlife

April 8
Seattle, WA

How to Manage and Prune Trees for Wildlife

April 11
Spokane, WA

ISA Certified Arborist, Utility Specialist, and Municipal Specialist Exam

April 29
Mt Vernon, WA

Pruning, Planting and Selecting for Street Tree Diversity

May 2020

May 7
Victoria, BC

ISA Tree Risk Assessment Qualification Renewal

May 11
Boise, ID

ISA Tree Risk Assessment Qualification

May 12
Seattle, WA

Basic Tree Identification

May 13
Seattle, WA

Advanced Tree Identification

May 14
Boise, ID

Tree Disorder Diagnosis

May 14
Boise, ID

Why Trees Fail – The Physics of Windstorm Tree Failure

May 15
Boise, ID

ISA Tree Risk Assessment Qualification Renewal

June 2020

June 4
Oregon City, OR

Basic Tree Identification

June 5
Oregon City, OR

Advanced Tree Identification

June 8
Seattle, WA

ISA Tree Risk Assessment Qualification

June 10
Surrey, BC

Soil! What it is and How it Works for Trees

June 11
Seattle, WA

ISA Tree Risk Assessment Qualification Renewal

June 12
Seattle, WA

Soil! What it is and How it Works for Trees

June 15
Oregon City, OR

ISA Tree Risk Assessment Qualification Renewal

June 17
Oregon City, OR

ISA Tree Risk Assessment Qualification

June 22
Surrey, BC

ISA Tree Risk Assessment Qualification

June 25
Surrey, BC

ISA Tree Risk Assessment Qualification Renewal

June 26
Bend, OR

Tree Protection During Construction

August 2020

August 18
Online

(Live Interactive Webinar) Climate Change Impacts on PNW Trees Symposium

August 18
Seattle, WA

(In-person) Climate Change Impacts on PNW Trees Symposium

October 2020

October 28
Surrey, BC

Laminated Root Rot Management in Urban Forests

October 29
Surrey, BC

Laminated Root Rot Management in Urban Forests

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