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Articles on Trees

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The tops of diseased, dying trees amid healthy trees in South Africa’s Harold Porter Botanical Gardens. Mike Wingfield

Tree diseases can change entire landscapes and must be taken seriously

These plants play a crucial role in a delicate ecosystem. If Cape Beech trees or in fact other native tree species are wiped out, that whole ecosystem shifts.
A mast year can be a squirrel’s dream come true. Editor77/Shutterstock.com

Tons of acorns? It must be a mast year

Masting is what biologists call the pattern of trees for miles around synchronizing to all produce lots of seeds − or very few. Why and how do they get on schedule?
Turning a street tree into timber is much more respectful and useful than mulching it all.

When a tree dies, don’t waste your breath. Rescue the wood to honour its memory

City trees are often short-lived and many others get cut down in their prime. Turning them into mulch both wastes timber and releases stored carbon. A wood rescue program creates a more fitting legacy.

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