Common applications of retaining wall construction from red gum and some hard woods have led people to and expensive undertaking in pest control applications in targeting termites and wood grubs down the track. 

Both of theses insect pests can bring a retaining wall apart in no time, especially termites if you get a good infestation of them.

They are a major problem for most residents that have natural timbers in their house or around the garden.

Most older generation homes used red gum sleepers for their retaining wall and garden beds because treated materials for retaining walls were not available at the time.

If landscaping of timber construction like retaining walls around your house are constructed of hard woods you should have them inspected professionally by an expert in this field

If at any time your retaining walls or any structure has been affected use treated materials for your application (retaining walls ) if  reconstruction is required.

seek help or advice on new products for example concrete retaining walls