Cades Cove Loop Road to Close for Spraying Operation

-Managers at Great Smoky Mountains National Park announced plans to implement a complete closure of the 11-mile Cades Cove Loop Road to all vehicular traffic on Monday, December 3, and to impose a partial closure on Tuesday, December 4.

Cades Cove, Great Smoky Mountains National Park (Photo taken by Michael Grider)

SEVIER COUNTY, Tenn.(WVLT)--Managers at Great Smoky Mountains National Park announced plans to implement a complete closure of the 11-mile Cades Cove Loop Road to all vehicular traffic on Monday, December 3, and to impose a partial closure on Tuesday, December 4.

During that time, Park forestry technicians will treat hemlock woolly adelgid (HWA)-infested hemlock trees with a horticultural oil sprayed from large truck-mounted units as they have been doing since 2004.

In the event of heavy rain or freezing weather, the operation will be rescheduled. To check the status of the road closure,
visitors can call the Park’s general information number at 865/436-1200.

During the full closure on December 3, only hikers will be allowed to travel the Loop Road. Bicyclists will not be allowed to enter the Loop Road for safety reasons since there will be heavy equipment on the road making it unsafe for bicycling. Park personnel will be working at the entrance and exit areas of the Loop.

The spraying operation on December 4 will only impact the western end of the Loop Road. Motorists and cyclists will be able to enter the Loop as they normally would, but will have to detour across the Loop via Hyatt Lane (the second gravel crossroad) to exit Cades Cove.

Hikers can continue through the closed portion. The detour will shorten the length of the trip to an 8-mile tour of Cades Cove. The Hyatt Lane bypass will eliminate access to the Cades Cove Visitor Center and Cable Mill area as well as the several trailheads located on the western end of Cades Cove: Abrams Falls, Cooper Road, Rabbit Creek, and Wet Bottom Trails, and Gregory Ridge trailhead.

As part of the Park’s control efforts of the hemlock woolly adelgid, actions include spraying hemlock trees with the oil/soap application in high-use developed areas that are easily accessible by vehicles such as Cades Cove, campgrounds, picnic areas and along roadsides.

Jesse Webster, Hemlock Woolly Adelgid Project Coordinator, said that, “In addition to spraying trees in developed areas, the Park is utilizing a systemic pesticide to treat some of the larger hemlocks in the spray zone.

The systemic treatments move into the tree canopy with sap flow and can effectively control adelgids for 5-7 years which can be a more practical and cost effective approach to management. The spray acts as a quick knockdown allowing the systemics to catch up."

The park employs a three-prong approach that also includes the release of predator beetles. All of the chemical and biological control techniques are showing positive effects in areas of these treatments, despite the noticeable decline of tree vigor and mortality throughout the Park.

Currently about 600 acres are being sprayed annually, over 220,000 hemlock trees have been hand-treated with systemic pesticides spread across 8,000 acres, and about a half-million predator beetles have been released.


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