The husband of a Queensland mother found dead in suspicious circumstances near a ride-on lawn mower has been arrested.

The body of 49-year-old Frances Elizabeth Crawford was found at the bottom of a retaining wall on a property at Upper Lockyer, west of Brisbane, about 3.40am on July 30.

Detectives today arrested her husband, 47-year-old air force pilot Robert Crawford.

Police had previously said Robert Crawford was at the property on the night the mother-of-three died.

In a public appeal last week, homicide detectives asked people who had come into contact with Robert Crawford to come forward with any relevant information.

"Detectives can confirm a number of people have provided information since our last public appeal and thank those people for their bravery in coming forward," Queensland Police said in a statement.