I can still remember a time before Portuguese Millipedes arrived at our home. It must have been seven or eight years ago – how things have changed!
These introduced millipedes seem to be silently overrunning the country, or at least the wetter bits. Unfortunately, the Strathbogie Ranges are no exception.
I think they arrived here with loads of straw from the Euroa plains during the drought, about 2005-6. The last years of the drought didn’t suit them that well, but once the wet years of 2010-11 hit, their populations exploded – all through the region. And every Autumn since then, once some rain has fallen, they appear in their gazillions. In some parts of the garden there’d be 50+/sq m.
I only hope that the population crashes seen in South Australia (of Portuguese Millipedes!), which are due to the spread of a millipede parasite, happens here too.