Burdekin sugarcane growers are playing a key role in major new research aimed at securing effective and sustainable canegrub control for the future, as current chemical options face possible restrictions.
Canegrubs are one of the most costly pests affecting sugarcane, with moderate infestations reducing yields by 10–20 per cent and severe outbreaks cutting production by more than 40 per cent — the equivalent of around 30 tonnes of cane per hectare. Across the industry, unchecked canegrub damage is estimated to cost up to $60 million annually.
At present, neonicotinoid insecticides such as imidacloprid are the primary control option. However, these products are under review by the Australian Pesticides and Veterinary Medicines Authority, with strong indications their use could be restricted or phased out by 2028–29.
In response, Sugar Research Australia (SRA) is leading a major project to identify alternative insecticides. Following laboratory screening of 23 products, up to 10 promising options have now progressed to large-scale field trials — including trial sites located in the Burdekin.
Chemical applications were completed in November across 12 trial sites statewide, with treatments applied to both plant cane and first ratoon crops. Over the next year, the Burdekin trials will be closely monitored to assess effectiveness, yield protection, soil persistence and water mobility, ensuring any future recommendations meet environmental standards.
SRA’s lead entomologist, Dr Kevin Powell, said the trials were critical to ensuring growers have viable control options available before current products are withdrawn. Preliminary field results are expected by the end of 2026, with full datasets ready by 2028.
The research is expected to deliver new tools that protect Burdekin yields, reduce long-term costs, and support sustainable cane farming into the next decade.
The research project ‘Beyond imidacloprid’ now has many sites treated across Queensland. Photo source: SRA
Different chemical treatments were applied to plant cane and first ratoon cane as part of the trials. Photo source: SRA
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