blackening on avocado branchlets
 

Can somebody please identify this disease on my young avocado tree.
The blackening affects the branchlets, which sometimes die.

http://www.box.net/public/static/6crrno35mu.jpg

http://www.box.net/public/static/bnpar8dy4l.jpg

Location is an inner suburb of Sydney.

blackening on avocado branchlets
 

"Richard Wright" wrote in message
...
Can somebody please identify this disease on my young avocado tree.
The blackening affects the branchlets, which sometimes die.

http://www.box.net/public/static/6crrno35mu.jpg

http://www.box.net/public/static/bnpar8dy4l.jpg

Location is an inner suburb of Sydney.

The second photo has a big red / brown scale on one of the branches. Maybe
they have caused the damage to the other branches. I have read somewhere
that the red scale can cause dieback damage to grapefruit trees, so that
might be a similar problem.


Liam.