News Tree care
Infectious black knot fungus threatens Edmonton’s fruit-bearing trees

Black knot, a fungal infection that attacks some fruit-bearing trees, is spreading through Edmonton and has city arborists busy in an attempt to curb the spread. Plum, apricot and cherry trees are the primary targets. About 2,600 trees have been identified as having black knot. Most have had the affected branches pruned, but about 390 infected trees have had to be removed.

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