Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #1   Report Post  
Old 13-05-2003, 03:44 AM
Jim Lewis
 
Posts: n/a
Default [IBC] Nectria canker on golden raintree?

My review of past postings of articles to this and related
newsgroups/websites suggested that this is a case of Nectria

canker.
In fact, one website listed Nectria as the only common problem
encountered with the golden raintree. Alas, most references to

this
fungus indicate that it is an almost incurable condition.


There is no cure, other than amputation of the infected area and
off-site destruction of the diseased stem. Nectria canker
usually occurs where a tree has been wounded. The tree is likely
to try to wall away the diseased area, causing a swelling in the
branch or trunk. The canker itself isn't likely to be fatal to
an otherwise healthy tree, but it can lead to attacks by borers,
which are attracted to diseased and weakened trees.

I suppose you could consider topping the tree a couple of inches
below the damaged are and starting over again. Sterilize all
tools.

Jim Lewis - - Tallahassee, FL - Our life is
frittered away by detail . . . . Simplify! Simplify. -- Henry
David Thoreau - Walden

************************************************** ******************************
++++Sponsored, in part, by Evergreen Gardenworks++++
************************************************** ******************************
-- The IBC HOME PAGE & FAQ:
http://www.internetbonsaiclub.org/ --
+++++ Questions? Help? e-mail +++++
  #2   Report Post  
Old 13-05-2003, 02:44 PM
Nina Shishkoff
 
Posts: n/a
Default [IBC] Nectria canker on golden raintree?

These areas are surrounded by what
would pass for an inky blue or black stain on the bark of the tree.
Within the cankers are reddish-brown areas covered with a gelatinous
material that is very slow to dry after a rainy day.


Those are excellent pictures. However, that doesn't look like Nectria
canker. Nectria produces pink eruptions on the affected area, like really
bad acne, and the spore mass is initially powdery, and then, when the
sexual state has formed, spores ooze out in little horns. You have some
sort of slime flux. It could be a bacterium coming in after a fungus like
Botryosphaeria.

At any rate, the treatment is the same: you have to cut off the cankers
well beneath diseased tissue. Do this on a dry day so you don't
contaminate the cut wound.

************************************************** ******************************
++++Sponsored, in part, by Evergreen Gardenworks++++
************************************************** ******************************
-- The IBC HOME PAGE & FAQ: http://www.internetbonsaiclub.org/ --

+++++ Questions? Help? e-mail +++++
Reply
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules

Smilies are On
[IMG] code is Off
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
[IBC] Thickening trunk base on Brazilian Raintree Vicky Estrella Bonsai 5 17-09-2004 04:38 PM
[IBC] Thickening trunk base on Brazilian Raintree Vicky Estrella Bonsai 0 11-09-2004 05:38 AM
[IBC] Brazilian Raintree/ Texas Ebony revisited dalecochoy Bonsai 4 18-11-2003 03:42 PM
Nectria canker on golden raintree? Noiseless Bonsai 0 13-05-2003 02:44 AM
Nectria canker on Golden Raintree? David L. Dunnagan Gardening 0 11-05-2003 10:56 PM


All times are GMT +1. The time now is 02:33 PM.

Powered by vBulletin® Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2004-2024 GardenBanter.co.uk.
The comments are property of their posters.
 

About Us

"It's about Gardening"

 

Copyright © 2017