Ask a Consulting Arborist Q&A: Root and Soil Concerns

Q: Will black knot disease transfer to a replacement tree if planted in the same location?

Monday, March 07, 2016  

Q: I live in Northeast Ohio and have a Montmorency cherry tree that has black knot disease. It has a bad case on almost every branch. If I cut it down to replant a new tree, is it likely to be transferred?

A: Black knot is likely to infect your tree again if a susceptible species is planted. There may be cherry cultivars that are resistant to black knot. The safest plan is to not plant another cherry tree, as black knot is very difficult to prevent and treat.

Responder: Jon Butcher, RCA #486, Milford, OH