Bugs, Beetles and Biocontrol
Transforming landscapes in the Burnett through innovative management practicesThis project was funded by the National Landcare Program and advanced a range of biocontrol solutions that challenge traditional approaches and improve the way the established weed species of Parthenium and Cat’s Claw Creeper (CCC) are managed in the Inland Burnett.
It is designed to create a long-term & sustainable management of Parthenium & CCC in the Inland Burnett Region via the production & use of multiple effective biocontrol agents.
The Opportunity
To accomplish this goal the project established a biocontrol breeding facilities at Monto.
The Monto facility was used to produce CCC biocontrol agents; Jewel Beetle and Tingid Bug. CCC has widespread impacts on native ecosystems, particularly vulnerable riparian zones. Interested landholders received bottles of 100 agents to release over 3 seasons.
Parthenium is one of the greatest weed pest species in Australia due to its invasiveness, potential to spread, economic & environmental impacts, which include decreasing viability of livestock production, harbouring plant disease, significantly impacting biodiversity & causing health complications in humans.
There are currently 9 insects and 2 rusts (fungi) released in Australia that are used as biocontrol agents on Parthenium. These agents wont eradicate Parthenium but instead control it by feeding and/or affecting the leaves, stems, roots, seeds and flowers. Therefore, a combination of agents result in a greater reduction of Parthenium weed.
Biosecurity Queensland indicate we have at least three biocontrol agents already present in the region. Therefore, we will be harvesting others from the field, particularly around the Central Queensland (CQ) region.
Zygogramma biocolorata (beetle), Winter Rust and Summer Rust were introduced to monitoring sites and landholder sites throughout the Inland Burnett.
Targeting the upper catchment of the Burnett River system will have positive long-term impact on weed reproductive material reduction & the migration of biological control agents further downstream, expanding the control impact of this project throughout the entire catchment over the longer-term.
Zygogramma bicolorata – biocontrol agent for Parthenium
Results
The project significate outcomes include the distribution of 15,307 Jewel Beetles at 58 release sites by 42 landholders, 2 x Landcare groups, local council and Queensland Parks and Wildlife Services (QPWS) who collectively manage over 56,000 hectares of land, over 21 different river/creek systems. Collaboration with QPWS in particulate is a significant outcome as they manage the sensitive environmental areas of Cania, Kroombit Tops and Coominglah Nation Parks. Forty- seven percent of the release sites had Jewel Beetles released for three seasons, 31% had two releases and 22% had one release. Monitoring indicated that 12 months after the first release, 75% of sites showed evidence of the biocontrol agent and persistence in the environment. Monitoring after the second release indicated 65% of sites showed evidence of an established Jewel Beetle population. The project extension not only permitted for 10 new landholders to become involved in the project, but it also allowed for the introduction of another CCC biocontrol agent – the Tingid Bug. 3,155 Tingid bugs were released over 20 sites (same release sites as the Jewel Beetle) by landholders who collectively manage over 22,000 hectares of land, over 15 different river/creek systems.
Another project outcome from the collection of Parthenium biocontrol agents was the redistribution to 20 release sites by landholders and local council who collectively manage over 15,000 hectares of land. With limited success of the Parthenium leaf-feeding beetle – Zygogramma beetle and Winter Rust, a final release of Summer Rust in larger quantities at the monitoring site just north of Monto and several landholders, showed a significant outcome with the marked spread and effect on the Parthenium. Monitoring outside the completion of the project will be continued with further collection and redistribution to establish the monitoring site as a collection site for the Inland Burnett.
Tingid bugs causing the characteristic white speckling on the leaves of Cats Claw Creeper vine.
Summer Rust release site – yellowing and browning off of Parthenium.
Resources
Program News
BCCA out and about in the Burnett
BCCA attended 3 North Burnett Shows (Monto, Eidsvold and Mundubbera) and set up with NBRC Recovery Officer, SES and Rural Fire to provide information and support to producers including soil mapping info, grants available, technical support, biocontrol agents, weed and...
Brian Pastures Field Day
BCCA attended the Brian Pastures Field Day last week and with over 200 people in attendance, gave us the opportunity to showcase some of our current project at our trade stall. Particularly our biocontrol project which involved breeding biocontrol agents for Cat's...
Off Grid Lifestyle Expo – Goomeri
On the weekend, BCCA attended the Off Grid Lifestyle Expo in Goomeri to share information about sustainable agriculture, land management and conservation on private lands in the Burnett Catchment. Over 120 interested individuals visited our stall over the 1.5 days and...
BCCA @ the Monto Show
BCCA's Katie Muller, Misty Neilson and Melinda Clarke, attended the local Monto Show on Saturday 22 April. We saw 43 interested individuals come through out stall. The public were able to view our Greater Glider nesting boxes, constructed by the Monto Men's Shed,...
Parthenium biocontrol released in the Inland Burnett
🐞Zygogramma bicolorata, also referred to as the Parthenium beetle or Mexican beetle, is native to Mexico but has been introduced as a biocontrol agent for Parthenium since the 1980's in Australia. The beetles are host specific and only eat and breed on Parthenium. ...
Jewel Beetles released into the Inland Burnett
𝐂𝐚𝐭𝐬 𝐂𝐥𝐚𝐰 𝐂𝐫𝐞𝐞𝐩𝐞𝐫 (CCC) is a long lived perennial vine native to Central and South America. It was introduced into Australia as an ornamental garden plant because of its vigourous growth and large, bright yellow, bell-shaped flowers it produces in spring. The vine...
Get involved in our Biocontrol Program
Burnett Catchment Care Association (BCCA) received a National Landcare Program – Smart Farms Small Grant to establish biocontrol breeding facilities in Monto. The facility will be used to produce biocontrol agents for Cats Claw Creeper (CCC) and Parthenium....
New Biocontrol project for BCCA
Burnett Catchment Care Association were recently successful in receiving a National Landcare Program – Smart Farms Small Grants Round 4 grant. Our project - ‘Bugs, Beetles and Biocontrol – Transforming landscapes in the Burnett through innovative management practices’...
Program Sponsors
This project was supported by the following partners and investors.
