Tip dieback on Cedar

[Baba]

I'm trying to identfy this problem on a young Cedrus deodara, dieback and browning of the tips distributed around the tree, looks like a fungus to me as there are some faint white powdery patches. Anyone have any clue???

[Joe Loggs]

there has been alot of yews in are area like this, we assume its todo with the drought

[Eagle]

The cedar probably has Botryosphaeria dieback, which is why it has brown areas appearing across the tree. It is a fungus that effects many trees when they are under stress....Botryosphaeria fungi are typically opportunistic pathogens. Opportunistic pathogens only cause disease on plants that are stressed. Therefore, avoiding plant stress, which predisposes plant tissue to infection and colonization by this fungal group, is the best strategy to prevent Botryosphaeria disease problems. It is important to remember that under optimal growing conditions, trees and shrubs are typically able to resist infection and colonization by Botryosphaeria fungi. Basically, the tree needs lots of water, but that is not always so practical to arrange!

[Baba]

Thanks guys, makes sense.

[Tony Croft aka hamadryad]

The cedar probably has Botryosphaeria dieback, which is why it has brown areas appearing across the tree. It is a fungus that effects many trees when they are under stress....Botryosphaeria fungi are typically opportunistic pathogens. Opportunistic pathogens only cause disease on plants that are stressed. Therefore, avoiding plant stress, which predisposes plant tissue to infection and colonization by this fungal group, is the best strategy to prevent Botryosphaeria disease problems. It is important to remember that under optimal growing conditions, trees and shrubs are typically able to resist infection and colonization by Botryosphaeria fungi. Basically, the tree needs lots of water, but that is not always so practical to arrange!

 

 

very good post:thumbup1: