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White Pine Trees

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From: Mary Price City: Libertyville, IL
How do you determine the age of a white pine without cutting it down. how long do white pines live
	Extension Message From: Richard Hentschel Extension Educator, Horticulture DuPage/Kane/Kendall Unit hentsche@illinois.edu
To know exactly, a certified experienced arborists can us a a couple of newer tools to "look" inside a living tree. One is called a resistograph, the other, sonic tomography. Using longtime residents and historical pictures is another way if complete accuracy is not needed. There is a white pine in N. Carolina that is 227 years old. http://www.treesforme.com/il_pinus.html suggests 200+ years old
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