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RE: italian cypress dead patches



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> De: Andrew Wilson <awilson@fda.net>
> A: Medit-Plants at UC Davis <medit-plants@ucdavis.edu>
> Asunto: italian cypress dead patches
> Fecha: domingo 25 de enero de 1998 6:58
> 
> Can anyone tell me what causes Italian cypress (Cupressus sempervirens v.
> fastigata) to show dead patches? I was looking at one today, forty feet
> tall. It seemed quite healthy except for two patches of dead branches
high
> up on it. The patches were about a foot across.
> 
> Is this a disease, a pest or what? If so, is there a cure?
> 
Andrew:
	And I am another that would like to know. I have been told that it is
Coryneum cancer and that it is very rampant in Italy. Small branches and
shoots up to 20cm long die all over the tree with us, not largish patches a
foot across as they do with you. Except under really bad conditions
Cupressus sempervirens seldom dies but C. macrocarpa is more affected by it
and lines of trees sometimes die completely. I am told by a grower of
cypresses in Gerona that they do all shaping of trees for sale with
secateurs that are dipped into bleach between each tree. It is notable with
us that the branchlets break off and fall. One side of the break the shoot
is brown and dry, just the other side the branchlet is completely green. It
has become a major pest round the Med.
latymer@ctv.es
Hugo Latymer   Spain   Zone 9
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