The Australian plague locust is a significant agricultural pest. It infests large areas, outbreaks are frequent and it can produce several generations in a year.
Where locusts come from
Australian plague locusts come from south west Queensland and the areas of New South Wales and the Northern Territory adjacent to South Australia.
How locust plagues develop
Large locust populations develop after rain in the warmer months.
Locust swarms migrate to South Australia from as far as 200km to 500km.
On arrival the locusts lay millions of eggs.
The mature locusts that hatch in spring may cause a plague.
Locust plague surveillance
When locust populations are likely to cross into another state the commission undertakes:
- threat assessment
- control measures.
You can play an active role in monitoring locust populations by reporting sightings via the easy-to-use Locust Locator. This is the latest tool in the surveillance of locusts in South Australia.
Locust plagues in South Australia
Major locust plagues occurred in 1844, 1871, 1934, 1947, 1955, 1976, 1979, 1992, 1993, 1997, 2000 and 2010.
Minor locust plagues occurred in 1950, 1969, 1972, 1973, 1974, 1977 and 1984.
Report suspected cases of Australian Plague Locusts
Call the Emergency Plant Pest Hotline on 1800 084 881 to report suspected cases of the Australian Plague Locust.