Research Breakthrough in Flystrike Treatment
Researchers at the University of Queensland (UQ) have demonstrated that a UQ-developed technology, BenPol, can significantly enhance the effectiveness of a chemical-free flystrike treatment for sheep. Flystrike, a painful and often fatal infestation of maggots, poses a major threat to livestock.
Addressing a Costly Problem
Dr. Karishma Mody, a Research Fellow at the Queensland Alliance for Agriculture and Food Innovation (QAAFI), highlights flystrike as a significant issue in Australia. The current chemical pesticide control methods cost approximately $320 million annually.
"The importance of a chemical-free alternative for the future of Australia's wool industry cannot be overstated," Dr. Mody stated.
Previous research had shown promise, indicating that double-stranded RNA (dsRNA) delivered to maggots could slow their development and lead to larval death. However, a significant hurdle remained: dsRNA degrades rapidly in biological fluids, hindering its ability to effectively reach its intended genetic target.
BenPol: The Protective Solution
Laboratory tests have now confirmed BenPol's crucial role: it acts as a protective capsule for dsRNA. This innovative protection allows the dsRNA to remain intact long enough for larvae to ingest it, successfully reach the gut, and ultimately deactivate the target gene.
QAAFI PhD candidate Yakun Yan emphasized the significance of this breakthrough.
"BenPol provides an effective platform for safeguarding and improving the uptake of RNA technology," Yan noted.
This development marks a significant advancement for RNA-based livestock protection. Given Australia's position as a producer of about a quarter of the world's greasy wool, environmentally friendly solutions to protect sheep and the industry are considered highly beneficial.
Collaboration and Future Directions
The successful testing of the BenPol platform was a collaborative effort. QAAFI researchers partnered with the Department of Primary Industries (DPI), with additional support from UQ. DPI contributed essential resources, including blowfly eggs, larvae, and specialized testing facilities.
With laboratory testing now complete, the team is preparing to move to field testing through comprehensive sheep trials. These trials are crucial for refining the formulation to perform effectively under real-world farm conditions.
Partnering with industry is considered essential to ensure BenPol can consistently protect dsRNA on farms, thereby securing the long-term future of the wool industry. This innovative method also demonstrates broader potential, showing promise for addressing other significant livestock pest problems, including cattle ticks and buffalo fly in cattle.
The comprehensive research findings were published in the esteemed journal Pest Management Science.