Treating plum trees for fungus

Question

My plum trees have what appears to be black knot fungus. The picture shows a recent growth; past experience indicates that it will eventually turn block, looking like a burned hotdog on a stick.

It recurs even after pruning away the affected branch. I hear that a fungicide may help and would like to know which fungicide would be recommended. Any other treatment pointers would be appreciated.

Thanks!

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Answer 1

Pruning away the infected area and treatment with fungicide is recommended.

https://www.gardeningknowhow.com/edible/fruits/plum/black-knot-tree-disease.htm