A woman, who cut off a man's penis after luring him to her central Queensland home where he was sprayed with poison and beaten to death, has been jailed for nine years.

In what a judge described as a "deeply savage" and "callous and depraved" chain of events, Dianna Gay Wright met father-of-two Noel Clark at Maryborough's Centrelink office in 2009 and drove him to her John Street house with the knowledge two men were waiting to attack him.

The court heard Wright's ex-lover Graeme Wright allegedly had a vendetta against Mr Clark and convinced her and her then partner Brian Naylor to help plot the brutal attack.

Once inside the house, Mr Wright and Mr Naylor allegedly jumped out of hiding and beat Mr Clark to the point where his head was "busted open and bleeding", sprayed his face with a substance, tied him up with power cords and left him to die on the bathroom floor.

Yesterday, she pleaded not guilty to murder but guilty to manslaughter and interfering with a corpse and was sentenced to nine years' jail.

Read more at the Fraser Coast Chronicle.