Cane toad sausages are being trialled to try to prevent wild animals from chowing down on the toxic amphibians as they spread across Australia.

The toads have become a major invasive threat to Australian wildlife since they were introduced to Queensland in the 1930s to control the sugar-cane beetle.

The toxic toads have been marching across the country at a rate of about 50kms a year.

The toad-meat sausages are being used in a taste-aversion therapy trial in Western Australia. Wild animals are being given the snarlers laced with a salt chemical that will make them feel sick, teaching them to steer clear of them.

Corrin Everitt from Western Australia's Department of Parks and Wildlife told Nine to Noon the programme has previously been successfully trialled with captive animals in the Northern Territories.

Goannas, lizards, snakes and a species of native cat called the northern quoll are susceptible to being poisoned by the toads, she says.