Ontario Story: Dawn redwood
Dawn redwood or Metasequoia glyptostroboides. Is it an acquired taste, the conifer that loses its needles in the fall? Or
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trees and shrubs
Dutch elm disease
By Dorothy Dobbie American elms and Dutch elm disease The native elm bark beetle, Hylurgopina rupifes, and the smaller European
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Black Knot on Cherry Trees
In the wintertime, black knot infections become increasingly apparent. Black knot is a fungus, Apiosporina morbosa, that colonizes members of
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Pruning shrubs
New life for old shrubs Nearly all well-established gardens have at least one old shrub which is often ignored until
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Common Birch Tree Pests
The bronze birch bark borer and the birch leaf miner Several pests attack birch trees, especially those that are under
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Birch trees in the urban landscape
by Dorothy Dobbie When and where to plant a birch The best time to plant a birch tree is spring
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When to call an arborist
Trees are complicated organisms. It is hard to identify a problem without the help of a professional. You need to
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How trees communicate
By Dorothy Dobbie Literature and myth abound with stories about trees talking to people and people talking to trees. Many
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Flowering shrubs
By Dorothy Dobbie I love spring. When the trees and flowering shrubs have shaken off the chills of a Canadian
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