Help: Pittosporum die-off


Every now and then over the last few years I have lost the odd Pittosporum tobira, often the weaker
plants in a place I wasn't too worried about them - the garden must have over 200 of the things and I
try not to let them dominate.
But now I am starting to get a bit concerned, as I think we have an animal eating away at the roots.
It tends to happen on the end of a row, and when I pull out the dead stump, virtually devoid of any
root fibre, the next P. tobira in line is often affected, and it has now spread to the clumps of
Pittosporum which I have grown rather fond of, with just the one slightly weaker plant seeming to
suffer in each clump.
They are relatively free of parasites above ground - whereas when they were unpruned when I first
arrived there were white "cocciniglia" galore, so I don't think they are to blame.
Any ideas? Solutions?


Anthony Green



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