Its called Dibotryon morbosum, aka Black knot fungus. It is indeed a fungus affecting cherries, plums, apricots. We don't have much of it here in sw Ontario, Canada. But a little further northeast of here, it can be quite prevalent.
Its called Dibotryon morbosum, aka Black knot fungus. It is indeed a fungus affecting cherries, plums, apricots. We don't have much of it here in sw Ontario, Canada. But a little further northeast of here, it can be quite prevalent.
RE: Unusual growth on Chokecherry branch