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Historical Information
Investigating Tree Rings
Three teachers investigate tree cookies and discover what tree rings tell us about history. ... Read More ›
Annual SBW defoliation of spruce-fir stands in Maine
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GNP Salvage Cut 1976
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damaged young trees from 1970s-80s outbreak
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Maine Budworm 1918-1988
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several gray trees
Aerial photo of dead trees from spruce budworm ... Read More ›