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  • Writer's pictureJeff

Black Knot

This nasty looking fungal infection affects fruiting trees such as cherries and plums.

It's spores spread long-range by contact with animals that feed on the fruits such as birds and rodents. It spreads short-range by spores carried by wind and rain in the Springtime, infecting damaged limbs and new growth.

The best defense against this pathogen is early detection and removal of the infected limb from the tree.

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