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Duluth East students Jessy Perrault (left), 17, and Jacob Kohlbry, 18, measure the growth of white pine trees in the school forest with the help of agriculture sciences teacher Jenny Madone of Duluth. The students are researching the use of a systemic deer repellent on the survival of the trees in conjunction with the Natural Resources Research Institute. (Clint Austin / caustin@duluthnews.com)

Duluth students testing repellent to deter deer from feeding on young white pines

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David Rowe and Nick Feldhake knelt next to a white pine sapling Friday afternoon in Duluth East’s school forest, gauging whether it had been eaten away by deer.

They noted a bite of the sapling had been taken, and made the appropriate remarks next to the tree’s number before moving on to another of the 74 trees to be documented.

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