Japenese Maple – Nectria cinnabarina canker

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!

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1 Comment To "Japenese Maple – Nectria cinnabarina canker"

#1 Comment By Nikki On 11/25/2014 @ 1:55 pm

This article will have more information:
http://maple.dnr.cornell.edu/pubs/diseases/bark.htm ^[1]

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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[1] http://maple.dnr.cornell.edu/pubs/diseases/bark.htm: http://maple.dnr.cornell.edu/pubs/diseases/bark.htm

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