If you thought the moth invasion was over, think again! Bogong moths are still popping up across NSW, leaving plenty of locals wondering when these unexpected houseguests are finally going to move on.
So, what’s going on?
Every spring, Bogong moths make an incredible journey towards the Australian Alps and Snowy Mountains, where they spend summer hiding in cool mountain caves.
But this year, huge numbers have turned up in places like Sydney and the NSW South Coast. Strong winds are thought to have blown some off course, while favourable conditions have helped boost their numbers.
The good news behind the invasion
While finding dozens of moths around your front door might not be everyone’s idea of fun, there is a positive side to the invasion.
Bogong moth numbers crashed dramatically during the drought years of 2017 to 2019, with an estimated 99.5 per cent decline. Their return in big numbers is giving scientists hope that the endangered species could be recovering.
They’re also an important food source for native wildlife, including the endangered mountain pygmy possum.
When will they leave?
Unfortunately, there’s no exact departure date. Experts say the moths could disappear from urban areas within days or weeks as their migration continues.
In the meantime, try switching off unnecessary outdoor lights and gently guiding any indoor visitors back outside.
