Glossary – I

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Increment borer – A hollow, auger-like instrument used to bore into the stem of a tree to remove a pencil-sized cylinder of wood containing a cross-section of the tree’s growth rings.

Insecticide – A chemical that kills insects.

Intermediate – See crown classification and shade tolerance.

Intermediate cut – The removal of physically or financially immature trees from a stand to improve the quality or growth of remaining trees. An intermediate cut may generate income (commercial cut) or may cost the forest landowner (a noncommercial cut). Contrast with harvest.

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