The Kedron Brook Catchment Branch has taken a step in its battle against one of Kedron Brook’s most persistent invaders: Cat’s Claw Creeper. In a collaboration Watergum Community Inc., we’ve introduced jewel beetles (Hylaeogena jureceki) to Kalinga Park to tackle infestations along northern banks of Kedron Brook. This biocontrol marks an innovative method in tool kit of Kalinga Park Bushcare Group’s ongoing efforts to restore riparian ecosystems and protect its biodiversity.
A Natural Solution
Cat’s Claw Creeper, a vigorous climbing vine claw-like tendrils, has long plagued Kedron Brook, smothering native trees and shrubs from Nundah to Ferny Grove. Its rapid spread threatens riparian vegetation along Kalinga Park. Traditional control methods—manual removal and herbicide use—have been labor-intensive and only partially effective against this resilient weed. Enter jewel beetle, a tiny but mighty ally.
These iridescent beetles, sourced through Watergum’s biocontrol program, are leaf-mining specialists native to South America, where Cat’s Claw Creeper originates. Their larvae burrow into vine’s leaves, feeding voraciously and disrupting its growth. Over time, this weakens plant, reducing its ability to spread and giving native vegetation a fighting chance to recover. Approved for release in Australia since 2001 by Queensland Government, jewel beetles have proven effective in various regions, and we’re thrilled to bring them to Kedron Brook.
The Release at Kalinga Park
On 2nd February 2025, Kedron Brook Catchment Branch release first batch of jewel beetles along creek’s northern banks near Toombul Terrace. The site, a former coal mine in early 1900s turned restoration site, has seen significant progress since 2008 when Kalinga Park Bushcare Group was established. However, Cat’s Claw Creeper remains a stubborn challenge, entwining eucalypts and black bean trees in its grasp.
Why It Matters
This initiative is a win for both ecology and community. By curbing Cat’s Claw Creeper, we’re protecting Kalinga Park’s remnant eucalypt forest and enhancing habitat for wildlife like Eastern Water Dragon, Butterflies and Moths which relies on native vines. Healthier creek banks also mean less erosion into Kedron Brook, improving water quality flowing to Moreton Bay—a priority for our catchment network.
The jewel beetle project builds on years of hard work by our volunteers, who’ve cleared weeds and planted natives like weeping lillypilly and lomandra. It’s a testament to power of partnerships, Watergum’s expertise amplifying our on-the-ground efforts supported by Brisbane City Council’s Habitat Brisbane program.
A Thank You to Our Partners
We extend our deepest gratitude to Watergum Community Inc. for supplying jewel beetles and sharing their knowledge. Their commitment to biocontrol solutions has opened a new front in our fight against invasive species. Thanks also to our Kalinga Park Bushcare Group volunteers, whose dedication keeps this site thriving, and to broader Kedron Brook community for supporting our mission.
Get Involved
Want to see jewel beetles in action? Join us at next Kalinga Park Bushcare Group working bee on third Saturday of month from 7:00 am to 9:00 am, near Coal Mine Memorial plaque. No experience needed—just bring your curiosity and a pair of gloves! Contact Bushcare Leader, Amie kalingaparkbushcaregroup@gmail.com for more information or to confirm your attendance.
The jewel beetles are small, but their impact could be transformative. Together, we’re proving that nature can fight back—one leaf at a time.
Read more at https://watergum.org/project/jewel-beetles/
