Cars, trucks and 4WD that have driven off-road through weed infestations may
contain weed seed caught in the radiator, mud guards, tyres and underbody.
Trucks that have transported livestock from infested areas may contain viable
seed that has fallen or been passed through stock (e.g. prickly acacia, giant rats
tail grass).
Areas of higher risk
Vehicles, machinery and equipment driven or operated in certain areas of
Queensland have a higher risk of becoming contaminated with the reproductive
material of weeds because of certain pest plants that occur in those areas for
example:
Vehicles, machinery and equipment that have been used, driven or sourced
from the Central Highlands are at greater risk of being contaminated with
parthenium weed seed.
Coastal and sub -coastal areas from the New South Wales border to
Rockhampton, and areas near Moura, Mackay, Townsville, Ingham and
Mareeba contain current infestations of giant rats tail grass.
Generalised distribution maps of all Queensland’s declared pest plants are available
on the department’s web site www.daff.qld.gov.au. However, persons with specific
local knowledge should be consulted such as land owners, local government weed
officers and state biosecurity officers.
Legislative obligations
All declared pest plants, require consideration in regards to preventing the spread of
their reproductive material. Some such as parthenium weed and giant rat’s tail grass
being prolific seed producers are highly competitive and form dense infestations that
are a high risk for contaminating with their seed, vehicles or machinery that are
driven or operated in these infested areas. Others such as mother of millions
reproduce from leaves and fragments of stems.
Section 46 of the Land Protection (Pest and Stock Route Management) Act 2003
states
“Moving or transporting vehicles and other things on roads
(1)
(2)
This section
applies to a person who moves or transports a vehicle or other
thing on a road if the person knows, or ought reasonably to know; soil or
other organic material in or on the vehicle or thing is likely to contain the
reproductive material of a declared pest plant.
The person must not, without reasonable excuse, move or transport the
vehicle or thing unless the person has taken reasonable steps-
(a) to restrict the release of the reproductive material when the vehicle or
thing is moved or transported; or
(b) to ensure the vehicle or thing is free of the reproductive material.
Maximum penalty–200 penalty units.”
reproductive material of an animal or plant means any part of the animal or plant
that is capable of asexual or sexual reproduction.
Examples of reproductive material of a plant–
1 seed or part of seed
2 bulb, rhizome, stolon, tuber or part of a bulb, rhizome, stolon, tuber
3 stem or leaf cutting
vehicle means anything used for carrying anything or any person by land, water or
air, and includes equipment or machinery capable of moving on land.
road includes an area–