A NEW Grains Research and Development Corporation project promises to help Australian grain growers manage snail and slug damage by optimising bait spreading.
Snails and slugs cause significant crop damage, costing the Australian grains industry an estimated $43 million annually.
The $450,000 project focuses on improving bait placement using aircraft and smaller ground rigs. It is supported by the GRDC and includes substantial in-kind contributions from the Aerial Application Association of Australia and research partners.
Optimising bait timing, integrating cultural and mechanical control methods, and enhancing spreading precision, are expected to improve snail control, reduce input costs and minimise grain contamination — helping growers meet market standards.
The project will produce accessible resources outlining the strengths and limitations of various spreader types, along with practical recommendations for improving bait placement and effectiveness.
The research team will be led by Western Australian agricultural research engineer Ben White, with technical and practical support from mechanical engineer Josh Giumelli and Victorian machinery specialist Mark Saunders. They will work with mollusc researchers and the AAAA to explore the influence of aircraft type and operational parameters.
“The project will include testing a range of aircraft types and surveying stakeholders to pinpoint key factors for effective bait distribution,” Mr White said.
“Additionally, we’ll evaluate a range of common 12-volt ground spreaders to provide a guide on suitable equipment and configurations for smaller spinner spreaders delivering consistent mollusc baiting outcomes.”
GRDC manager of crop protection (west), Georgia Megirian, said the project emerged in response to feedback through the GRDC’s National Grower Network.
“Snails are a persistent challenge, with control often inconsistent due to difficulties in achieving effective bait coverage and timing,” she said.
“Application methods and spread accuracy play an important role, and improving these techniques could help reduce crop losses and minimise the need for multiple applications.”