Revolutionising biosecurity: new tools to tackle thrips and tospoviruses
28 February 2025
Australia’s nursery industry is harnessing innovative technology to combat thrips and tospoviruses, significant biosecurity threats capable of devastating crops. A collaborative project, led by the Victorian Department of Jobs, Precincts and Regions and the University of Queensland, is delivering cutting-edge surveillance tools to enhance pest and disease management.
The threat: thrips and tospoviruses Thrips, tiny pests with over 7,700 species, transmit harmful tospoviruses, including Tomato Spotted Wilt Virus (TSWV), which weakens plants and causes economic losses. Among the primary threats in Australian nurseries are Western Flower Thrip, Tomato Thrip and Onion Thrip. Their adaptability and rapid spread make them a critical challenge for biosecurity.
Project advancements
This initiative aims to improve the industry’s preparedness through:
- pest dynamics mapping: tracking seasonal changes and interactions between pests and landscapes to anticipate outbreaks
- genetic insights: using genetic analysis to enhance species identification and develop targeted management strategies
- smart surveillance tools: introducing DNA barcoding and portable nanopore sequencing for rapid, accurate detection of thrips and the viruses they carry
- tailored frameworks: designing a practical surveillance system to prevent the spread of exotic tospoviruses.
Innovating with DNA technology Traditional pest identification methods rely on microscopic examination, which is time-consuming and requires expertise. DNA barcoding, however, offers faster and more reliable identification by analysing unique genetic sequences. Additionally, portable nanopore sequencing devices enable real-time on-site testing, reducing reliance on external laboratories.
Practical applications and future prospects
These advancements strengthen nursery biosecurity by enabling early detection of and rapid response to pest and disease threats. Integrated into existing frameworks like Biosecure HACCP, these tools will help nurseries manage risks more effectively. As DNA-based technology evolves, portable devices may soon become standard, empowering growers to identify and address biosecurity threats directly.
This project underscores the importance of blending scientific innovation with practical solutions to secure Australia’s nursery industry. For more information, please visit greenlifeindustry.com.au/communications-centre/february-2025-nursery-paper and greenlifeindustry.com.au.
