A swarm of locusts covering 1 kilometre of land can contain anywhere from 4
million to 50 million individuals. Locust plagues can occur anywhere in mainland
Australia but outbreaks are frequently seen in inland areas of Queensland, New
South Wales and South Australia.

Major outbreaks of locusts occur when a
significant amount of rain has fallen and there is a substantial amount of wind.
The ability of the locusts to form large communities to eat, make them a
fearsome foes for producers. As they are highly mobile creatures, locusts pose a
serious risk to all agricultural areas.
Australian locusts feed on grasses and cereal crops although they can also feed
on a wide variety of plants including grapevines and trees. The young hoppers
can do extensive damage to pastures but as they cannot fly they are limited to
the surrounding area. When locusts reach full maturity, they are highly mobile,
and can swarm; this is where the most severe damage occurs.
When a locust outbreak occurs the population needs to be controlled as quickly
as possible and in the most cost-effective way. The Australian Plague Locust
Commission (APLC) manages outbreaks of locust populations. The APLC uses an
integrated management process; their main aim is to limit the population of
locusts, before they reach a huge numbers.
It is important to report any sightings of locusts, so that the proper
management and care of locusts can be taken. You can do this by contacting your
local Rural Lands Protection Board, Department of Primary Industries
(Agriculture) or the APLC. The APLC can be contacted on 1800 635 962.
To learn about Australian plague locusts and action plans visit the
APLC.