13 October, 2025
drones-tackle-destructive-bitou-bush-invasion-along-aussie-coast

UPDATE: Authorities in New South Wales are deploying drone technology to combat the invasive Bitou bush, described as “one of the most destructive” threats to Australia’s coastal ecosystems. This urgent effort comes as the invasive species continues to threaten 55 endangered native species and disrupt local environments.

The Department of Climate Change, Energy, the Environment and Water (DCCEEW) confirmed that drones are now operational in Gaagal Wanggaan National Park and Coffs Coast Regional Park, focusing on cliffs where traditional weeding methods are impractical. This innovative approach allows rangers to spray a biodegradable herbicide called Metsun on inaccessible clusters of Bitou bush, which can produce up to 48,000 seeds each year.

“Drones enable access to weed infestations on steep and inaccessible cliffs where humans or other machines cannot reach easily or safely,” a DCCEEW spokesperson told Yahoo News. This technology enhances precision, targeting smaller clumps of Bitou bush while leaving native flora unharmed.

The urgency of this mission stems from the Bitou bush’s aggressive growth, capable of smothering native plants and blocking access to beaches and walking trails. Currently, 15 endangered ecological communities in New South Wales are directly impacted by the presence of this invasive weed.

As authorities ramp up efforts to tackle the spread of Bitou bush, they are also engaging the public. Communities across Australia are being urged to report sightings of invasive species, including the “pretty yet menacing” gladioli, which threaten local biodiversity.

Invasive plant species cost Australia approximately $24.5 billion each year, underscoring the critical need for effective management strategies. Jack Gough, CEO of the Invasive Species Council, likened the challenge of combating these threats to the monumental task of landing a man on the moon.

The integration of drone technology into environmental management represents a significant step forward in protecting Australia’s unique ecosystems. As the fight against Bitou bush intensifies, officials are committed to restoring balance to the coastal regions and safeguarding native species for future generations.

Stay tuned for further updates as authorities continue to monitor the situation and implement new strategies in this ongoing battle against invasive species.