
<<< An arborist uses an air spade to blast the soil away from the root system of a failing 'October Glory' red maple in the R Street parking lot near the Administration Building. The excavation revealed a number of girdling roots that caused the tree to suffer. Some of the girdling roots were severed and compost was added to the soil to stimulate new growth.
>>> Nearby, in the Court of Honor section of the Introduction Garden, arborists worked to prune trees overhanging some of the oldest specimens of Arboretum plant introductions.
<<< A climber works on pruning a large chestnut oak near the Court of Honor. Climber is an arborist designation for someone who is skilled in working in the tree tops, often hoisting themselves and their equipment up on ropes.
>>>> Climbers always work with ground support staff.
<<<< A climber works high in an oak in the R Street parking lot.
>>>> Arborists prepare to prune and cable the large elm tree near the R Street gate.
<<<< A bucket truck is used to provide a stable platform from which the arborists can work. Other arborists are suspended from ropes.
>>>> An arborist works in an oak amid the changing leaves. The weather was superb.
<<<< Trucks and equipment assembled near the Morrison Garden in the Azalea Collections to perform a variety of tasks.
>>>> An arborist uses a chainsaw from a bucket truck.
<<<< The large lacebark pine in the Morrison Garden in the Azalea Collections has been declining for a few years. Cabling, using the newly developed Cobra system. Cobra cabling does not require drilling into branches and encourages the tree to form wood to brace its own branches.
>>>> The air spade was brought in to provide a closer look at the root system.
<<<< Over time, an excess of mulch had built up. Under the thick organic layer, the ground was hard and dry. The excess mulch was removed and compost was added to stimulate root growth and improve the porosity of the underlying soil.
>>>> Pruning was completed in several large trees in the Maple Collection.
<<<< Fertilizer was injected near trees in the Maple Collection to improve their health.
>>>> New maple trees were planted to expand the collection.
<<<< Several Arboretum staff were on hand to assist the arborists, among them were Susan Martin, left, and Susan Greeley, right.
>>>> By mid morning, lunch preparations were well underway.
<<<< Participants feasted on a hearty barbecue meal.
>>>> Installation of COBRA system in a lace bark pine by Joe Bones, of Bartlett.
<<<< Alan Jones and Rob Springer, of Bartlett, are injecting an American Elm as a preventative to Dutch Elm disease.
>>>> Arboretum staff members Jim Adams and Sue Martin with the Bartlett maple planting crew.
<<<< Friends of the National Arboretum Board Member Franziska Huxley (left), FONA Chairman Tuckie Westfall (center), and FONA Executive Director Kathy Horan (right) brought deserts and snacks to complement the feast.
>>>> Director Thomas Elias addressed the group, thanking them for their help.
<<<< Robert A. Bartlett addressed the crowd, thanking them for their service.
>>>> Elias presented Bartlett with a certificate of appreciation.
<<<< Each participant received a t-shirt to remember the 2004 Day of Service.
^^^^ Group Photo |
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Last Updated November 18, 2004 10:12 AM
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