Queensland mum admits killing baby

A young Queensland mother who killed her seven-week-old daughter will be sentenced in April after pleading guilty to manslaughter.

Michelle Catherine Leask calmly said "guilty, you honour," when arraigned over the April 2012 death of her baby, Lili Cataldo, during a brief hearing at the Brisbane Supreme Court on Wednesday morning.

A charge of murder was withdrawn following the plea.

Leask left court holding the hand of a young man and didn't comment.