"Tonto_Goldstein" wrote in message
...
G'day,

The carpark where I work has a number of Bottlebrush trees, most of which
have a black sooty sort of a deposit on the trunk and branches ... almost
like someone has lit a fire under the tree.

I haven't seen any little critters, but from searching on the interwebnet
thingy, it seems the might have a bit of a scale infestation(?)

Any other suggestions as to what it might be, and what the right treatment
would be?




I remember having seen this on several natives at mum and dad's place, and
it was associated with scale infection. Whether the scale caused it, or
simply took advantage of an already sick tree, I'm not sure. Try treating it
with white oil.