Arborist Assistant

Hagley Museum and Library seeks an Arborist Assistant to join its Preservation Buildings and Grounds department and work with the Supervisor, Grounds and Arboriculture.  Responsibilities include pruning and treating ornamental and shade trees and shrubs to improve their appearance, health, value, and safety as well as removing fallen trees, branches and shrubs.  Help plant, transplant, apply pesticides, and provide other necessary tree care operations.  Assist with other grounds maintenance and projects including emergency clean-up operations after inclement weather. 

Specific Duties:

1. Provide assistance to Supervisor when climbing up or down a tree or working above ground including:

     a. Render life support with ropes, rigging, and ladders; supply all necessary tools.

     b. Remove fallen limbs and trees and help dispose of them in chipper or by using other means of disposal.

     c. Assist in take downs or lowering of large branches or sections of trees around buildings and visitor areas.

2. Prune, trim, remove, and treat trees and shrubs using ladders or rigging to work in trees and working on ground.  Also entails use of chain saws, pole saws, hand saws, pruning hooks, shears, long handled clippers, roping, rigging, and other equipment.

3. Assist with surveying property and recommending appropriate procedures to be taken with dormant, diseased, dead, or unattractive trees and shrubs.

4. Help plant, transplant, apply pesticides, and provide other necessary tree care operations.

5. Maintain saws, rigging, safety equipment, and other tools in proper working condition.

6. Direct other groundskeepers when assisting with tree and limb removal.

7. Monitor work environment and target job performance to comply with federal, state, and Hagley safety policies.  Take responsibility for wearing safety equipment as required including gloves, ear plugs, safety glasses or goggles, helmet, and steel-tipped safety boots.

8. Assist grounds maintenance and other service division crews in projects as assigned including emergency clean-up operations after inclement weather.



  • Knowledge and training in commercial or institutional arboriculture including providing life support materials and equipment; pruning, removal of limbs and brush from ground, treatment of trees and shrubs, and climbing.
  • Excellent physical condition to perform moderate to heavy labor for extended periods of time in varying weather conditions plus ability to climb trees and ladders to 50+ foot heights.
  • Working knowledge of arboriculture equipment (e.g. saws, rigging, shears, and chippers) and proper techniques for tying knots for tipping, lowering, and climbing trees. 
  • Ability to understand and follow oral instructions.
  • Valid driver's license.
  • Ability to work occasional evenings and weekends for special events and emergency clean-up operations.

Resume and cover letter should be sent to:

Yvonne Dalton, Director, Personnel Support Services
Hagley Museum and Library
P.O. Box 3630
Wilmington, DE 19807


The closing date for applications is Wednesday, March 1, 2017.

Expire Date: 
Wednesday, March 1, 2017