Portuguese millipedes are an introduced species that can invade homes in large numbers, particularly in autumn when they are on the move. They are attracted to light and often find their way inside through gaps around doors, windows, and foundations. While they do not bite or cause structural damage, they can be extremely difficult to keep on top of and emit an unpleasant odour when disturbed or crushed.
JAE can apply barrier treatments around the exterior of your property to reduce Portuguese millipede invasions and help seal the entry points they are using to get inside.
Portuguese millipedes are an introduced species that migrate in large numbers into homes during damp autumn and spring weather, entering through gaps under doors, along foundations, and around garage entries. They do not bite or damage property, but their sheer numbers and habit of curling up and releasing a yellow staining secretion when disturbed make them an unpleasant invader. Outdoor lighting often makes the problem worse by drawing them to the building at night.
JAE applies perimeter treatments and barrier sprays around the foundations, garage entries, and other access points to stop millipedes getting inside during the seasonal migrations. The barrier creates a treated zone the millipedes have to cross, knocking down the migration before they reach the building.
Our technician will identify the migration paths and explain practical steps to reduce attraction — switching outdoor bulbs to warmer colours, sealing gaps under doors, and clearing leaf litter and mulch back from the foundations — so the seasonal pressure on the building is reduced year on year.
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