GATLINBURG, Tenn. (AP) -- National Park Service officials say they'll spray again next month for tree pests in Cades Cove.
The invasive hemlock wooly adelgid is about the size of a poppy seed, but infestations of them kill trees over time.
The cove in the Great Smoky Mountains National Park will be closed to traffic on December 5th and part of December 6th so workers can spray trees along the Loop Road.
Park spokesman Nancy Gray says an oil is sprayed and it coats the insects, eventually smothering them.
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