Japanese Maple Trees
Q.

Japenese Maple – Nectria cinnabarina canker

Anonymous added on November 25, 2014 | Answered

We think our tree has Nectria cinnabarina canker, and we just wondered how we can stop this spreading? It is on one branch badly, and has just started on a small area of another. Please help, as we love our tree!

A.
A.Answers to this queston: Add Answer
Nikki
Certified GKH Gardening Expert
Answered on November 25, 2014

This article will have more information:
http://maple.dnr.cornell.edu/pubs/diseases/bark.htm

It is normally not fatal, but can weaken the tree so that it is susceptible to other diseases and pests. Treat the tree with a fungicide and keep a close eye on it for other problems.

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