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2027 ISA Certified Arborist Training

• Friday, January 8, 2027, 12:30 PM - 3:30 PM
• Monday, January 11, 2027, 1:00 PM - 4:15 PM
• Tuesday, January 12, 2027, 10:00 AM - 3:30 PM
• Thursday, January 14, 2027, 1:00 PM - 4:15 PM
• Friday, January 15, 2027, 12:00 PM - 12:00 PM

• All Sessions with a Study Guide and ISA BMPs ($615)
• All Sessions with a Study Guide and ISA BMPs, 10% off with code "earlybird" when you register before 12/15/2026 ($535.50)
• All Sessions without Study Guide ($460)
• Each Session ($115)

January 8th 12:30PM - 3:30PM

**DEC Pesticide Recertification Credits offered for Session 1**

• Credits have been applied for and were awarded for last year's program. As soon as credits are received, the program agenda will be updated and registrants will be notified.

**ISA Continuing Education Units offered for Session 1**

• Credits have been applied for and were awarded for last year's program. As soon as credits are received, the program agenda will be updated and registrants will be notified.

Agenda Session 1

• 12:30PM – 1:15PM Welcome, Housekeeping, Application Process
  • Instructor: Isabella Yannuzzi, CCE Dutchess Agriculture/Horticulture Program Leader
• 1:15PM – 2:30PM Tree Biology
  • Instructor: Isabella Yannuzzi, CCE Dutchess Agriculture/Horticulture Program Leader
  • Topics to be covered include
    • Tree growth
    • Xylem and phloem
    • Plant transport and vasculature
    • Tree biology
      • Branches
      • Twigs
      • Leaves
      • Roots
    • Tree physiology
    • Tree growth and development
• 2:45PM – 3:30PM Tree Identification
  • Instructor: Isabella Yannuzzi, CCE Dutchess Agriculture/Horticulture Program Leader
  • Topics to be covered include
    • Plant classification and taxonomy
    • Plant Identification
      • Leaf ID
      • Leaf arrangement
      • Conifer ID
      • Palm ID

January 11th 1:00PM - 4:15PM

**DEC Pesticide Recertification Credits offered for Session 2**

• Credits have been applied for and were awarded for last year's program. As soon as credits are received, the program agenda will be updated and registrants will be notified.

**ISA Continuing Education Units offered for Session 2**

• Credits have been applied for and were awarded for last year's program. As soon as credits are received, the program agenda will be updated and registrants will be notified.

Agenda Session 2

• 1:00PM – 2:15PM Urban Forestry: Seeing the Forest for the Trees
  • Instructor: Amy E. Mackenzie, Urban Forester with NYSDEC
  • Topics to be covered include:
    • The principles and practices of growing and maintaining trees in an urban environment
    • Benefits of trees
    • Planning for tree infrastructure
    • Tree inventories and urban forest management plans
    • Municipal tree policy
• 2:15PM – 2:30PM Break
• 2:30PM – 4:15PM - Diagnosis/Treatment and Plant Health Care
  • Instructor: Don Gabel, former NYBG Director Plant Health
  • Topics to be covered include:
    • Distinguish between plant problems caused by living and nonliving disorders
    • The systematic approach to the plant diagnostic process - 1PM
    • How stress can weaken a tree, predisposing it to invasion by pathogens and insects
    • Signs and symptoms of tree disorders
    • Types of insect and diseases of trees and their impact on tree health
    • Choosing insect and disease resistant varieties
    • Principles of Integrated Pest Management
    • Treatment options

January 12th 10:00AM - 3:30PM

**DEC Pesticide Recertification Credits offered for Session 3, 1:00 PM-4:15PM**

• Credits have been applied for and were awarded for last year's program. As soon as credits are received, the program agenda will be updated and registrants will be notified.

**ISA Continuing Education Units offered for Session 3**

• Credits have been applied for and were awarded for last year's program. As soon as credits are received, the program agenda will be updated and registrants will be notified.

Agenda Session 3

• 10:00AM – 12:00PM Hands-on Demonstration
  • Instructor: Mark Chisholm, Aspen Tree Experts
  • Topics to be covered include:
• 12:00PM-12:30PM Break for lunch
• 12:30PM – 3:30PM Safety/Climbing, Cable/Bracing, Worker Safety, Tree Support and Lightening Protection
  • Instructor: Mark Chisholm, Aspen Tree Experts
  • 15-minute break during this time.
  • Topics to be covered include:
    • Basic safety procedures
    • PPE
    • Laws and regulations
    • Electrical hazards
    • How to climb a tree
    • Mitigating damage to trees
    • Corrective cabling and bracing practices to mitigate
    • Insect/disease/environmental damage
    • Tree support systems
    • Lightning protection systems
    • Inspection of Gear
    • Ropes
    • Knots
    • Tree inspection for insects, diseases, structural hazards
    • Rigging

January 14th, 1:00PM - 4:15PM

**DEC Pesticide Recertification Credits offered for Session 4, 1:30PM-4:30PM**

• Credits have been applied for and were awarded for last year's program. As soon as credits are received, the program agenda will be updated and registrants will be notified.

**ISA Continuing Education Units offered for Session 4*

• Credits have been applied for and were awarded for last year's program. As soon as credits are received, the program agenda will be updated and registrants will be notified.

Agenda Session 4

• 1:00PM – 2:00PM Tree Pruning
  • Instructor: Steve Chisholm, Aspen Tree Experts
  • Topics to be covered include:
    • Basics of pruning
    • Pruning dead or diseased branches
    • Pruning insect infested branches
    • Proper pruning techniques to avoid insect or disease invasion
• 2:00PM – 3:00PM Tree Risk Assessment
  • Instructor: Steve Chisholm, Aspen Tree Experts
  • Topics to be covered include:
    • Process of tree risk assessment - physiological vs. physical (insect or disease-causing structural weakness)
    • Decay in trees, their cause and treatment
    • Recommendations to mitigate potential hazards
• 3:00PM – 3:15PM Break
• 3:15PM – 4:15PM Preservation Procedures to Protect Trees During Construction so as to ensure continued health of the tree to lessen the impact of opportunistic insects and/or diseases
  • Instructor: Steve Chisholm, Aspen Tree Experts
  • Topics to be covered include:
    • How trees are damaged during construction
    • Planning and preservation
    • Treatment of trees damaged by construction

January 15th, 1:00PM - 4:30PM

**DEC Pesticide Recertification Credits offered for Session 5**

• Credits have been applied for and were awarded for last year's program. As soon as credits are received, the program agenda will be updated and registrants will be notified.

**ISA Continuing Education Units offered for Session 5*

• Credits have been applied for and were awarded for last year's program. As soon as credits are received, the program agenda will be updated and registrants will be notified.

Agenda Session 5

• 1:00PM – 2:15PM Soil/Water Relations
  • Instructor: Barbara Neal, retired Consulting Arborist and Cornell Cooperative Extension agent for CCE Tioga
  • Topics to be covered include:
    • Soil characteristics and soils effect on nutrient availability and plant health
    • (growth, insect/disease resistance)
    • Physical, biological, and chemical properties
    • Soil moisture and plant growth and potential stresses that cause insect and
    • disease damage
• 2:15PM – 2:30PM Break
• 2:30PM – 3:30PM Installation/Establishment
  • Instructor: Barbara Neal, retired Consulting Arborist and Cornell Cooperative Extension agent for CCE Tioga
  • Topics to be covered include:
    • Proper planting techniques to avoid stress and promote healthy growth to avoid poor growth structure and/or invasion by insects and diseases
    • Plant selection for insect and disease resistance
    • Transplanting
    • Planting specifications
• 3:30PM – 4:30PM Nutrition/Fertilization
  • Instructor: Barbara Neal, retired Consulting Arborist and Cornell Cooperative Extension agent for CCE Tioga
  • Topics to be covered include:
    • Proper fertilization techniques to promote healthy plant growth
    • Discussion on how over-fertilization can promote insect buildup

Fee

Between $115 and $615

Learn More

https://wl.donorperfect.net/weblink/WebLink.aspx?name=E341942&id=14

Register

https://wl.donorperfect.net/weblink/WebLink.aspx?name=E341942&id=14

Location

2715 Route 44
Millbrook, NY 12545

Last updated July 16, 2026