Imagine a future where sheep can be protected from the painful and often deadly infestation of maggots without relying on harsh chemicals. This vision is becoming a reality thanks to groundbreaking research from the University of Queensland, where scientists have developed a revolutionary technology known as BenPol. This innovative approach significantly enhances the effectiveness of a chemical-free treatment for flystrike, a serious issue affecting sheep in Australia.
According to Dr. Karishma Mody, a research fellow with the Queensland Alliance for Agriculture and Food Innovation, flystrike poses a significant challenge in Australia, costing the wool industry nearly $320 million annually due to the need for chemical pesticides. "Finding a chemical-free solution to combat flystrike is crucial for the sustainability of Australia’s wool sector," Dr. Mody emphasized.
Previous studies had already indicated that double-stranded RNA (dsRNA) could be effective in slowing down the development of maggots and even causing larval death. However, a significant hurdle remained: dsRNA degrades rapidly in biological fluids, making it difficult to effectively reach and impact the target genes in the larvae.
The breakthrough with BenPol lies in its ability to act as a microscopic protective capsule for dsRNA, ensuring that the RNA remains intact long enough to be consumed by the larvae. Once ingested, the dsRNA can travel to the gut and successfully silence the target gene, offering a promising new avenue for pest control.
PhD candidate Yakun Yan remarked on the significance of this technology, stating, "BenPol serves as an effective platform to safeguard and improve the uptake of RNA technology in livestock management." She highlighted the importance of developing environmentally friendly solutions, especially given that Australia produces about 25% of the world’s greasy wool.
Dr. Mody noted that the successful testing of the BenPol platform was made possible through a vital partnership with the Department of Primary Industries (DPI). She acknowledged the contributions of Professor Tim Mahony and expressed gratitude for the DPI's support in providing blowfly eggs, larvae, and necessary testing facilities.
With laboratory tests now completed, the research team is excited to move forward to the next phase, which involves field testing BenPol through trials with actual sheep. "Our goal is to refine the formulation under real-world conditions," Dr. Mody explained. "Collaborating with industry stakeholders will be essential to ensure that BenPol can effectively protect dsRNA in farm environments, thus helping to secure the future of our wool industry."
Moreover, there’s potential for this innovative strategy to address other pest-related challenges in livestock, including cattle ticks and buffalo flies in cattle.
This pivotal research has been documented in the journal Pest Management Science, highlighting the collaborative efforts of The University of Queensland, an Advance Queensland Industry Research Fellowship, and the Department of Primary Industries. The Queensland Alliance for Agriculture and Food Innovation stands as a dedicated research institute at The University of Queensland, established in conjunction with and supported by the DPI.
