From This Old House.

The Concord property has several specimen Hemlocks that could be over a hundred years old. But Hemlocks in America are under attack by an insect from Japan called Wooly Adelgid. Jenn Nawada meets arborist, Josh Fritz, who has been hired to save our trees.

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Where to find it?
Tree specialists: Hartney Greymont [https://www.hartney.com]

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About This Old House TV: This Old House is America’s first and most trusted home improvement show. Each season, we renovate two different historic homes—one step at a time—featuring quality craftsmanship and the latest in modern technology. We demystify home improvement and provide ideas and information so, whether you are doing it yourself or hiring out contractors, you’ll know the right way to do things or the questions to ask. Our experts including general contractor Tom Silva, plumbing and heating expert Richard Trethewey, landscape contractor Jenn Nawada, master carpenter Norm Abram, and host Kevin O’Connor give you the tools you need to protect and preserve your greatest investment—your home.

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Saving the Trees | This Old House
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