Preventing its introduction is the most
cost-effective strategy in dealing with
mimosa. Its main weedy attributes – an
invasive nature, vigorous growth rate,
high fertility and durable seeds – make
control difficult and expensive. Reducing
the spread of mimosa requires careful
management of infestations. Soil or sand
(which could contain mimosa seeds)
should not be removed from infested
areas. Any transport vehicle or machinery
used in infested areas should be thoroughly
cleaned before moving to other areas.
Also, stock from infested areas should
be held for at least eight days to allow
all ingested seeds to be expelled, and
the holding pen must be monitored for
mimosa. Existing infestations should be
monitored and feral animals, which are
known to transport seeds and create
conditions suitable for germination,
should be controlled.
If mimosa is introduced into an area,
then prevention of spread is the next
highest priority. Mapping, planning and
allocation of sufficient resources are
essential management tools. The spread
of mimosa in the monsoon season due
to floodwaters can be restricted by
retaining vegetation cover, which impedes
seed movement. Vegetation cover is
best managed by controlled stocking
and judicious use of fire.
Report new occurrences of mimosa to
the relevant local council or state or
territory government agency.