nectria canker

navigate by keyword : acer black callus canker cherry concentric disease distinctive ditissima forest fungi hardwood identification maple nectria neonectria rings saccharum species sugar target tree trees wood horizontal image

   
   
   
   
   
   
   
Nectria Canker
   
   
   
   
   
   
   
Hoeizontal image of Nectria canker caused by Neonectria ditissima on a Sugar Maple Acer saccharum. Can affect many hardwood species. Has distinctive rings of concentric callus wood.


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