am needing help with a tree please. Hass avocado purchased last
October. I planted it then, and promptly had most of its bark chewed
at by, presumably, possums. We have put around netting, so there
has been no further chewing, but the bark is not healing and the
leaves are not growing. It is just ticking over alive.
your avocado has not been ringbarked, then you will be able to save
it. Apply a pruning paste that contains a fungicide to the wound
to help stop fungus disease entering the plant. As spring approaches
and new growth appears, the wound should start to heal. Unfortunately,
if the avocado has been ringbarked, you will not be able to save
I have heard that raw
lanolin (from sheep's wool) is a good deterrent to possums. Either
hang pieces of raw sheep's wool around the plant or purchase raw
lanolin from the pharmacy and smear onto the stem of the plant.
Take care not to place lanolin on leaves or the underside of leaves
as this will cause damage to the plant. Raw lanolin is different
to the lanolin purchased in a tube.
by Dr Dan Blanchon from Unitec's Diploma in Sustainable Horticulture and Bachelor
of Resource Management.
with permission from NZOOM Home and Garden content,
from the previous
The views expressed here are not necessarily those of the RNZIH