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Quick Facts Beech leaf disease (BLD) is a new disease to the United States; scientists have been working quickly to understand its pathogenesis and test treatment options to mitigate or control damage ...

What can you learn from a tree's leaves? Discover how leaf shapes, edges, patterns, and more can help you identify a tree in the forest.

Choose from 151,997 Christmas Card stock illustrations from iStock. Find high-quality royalty-free vector images that you won't find anywhere else.