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The Guardian - AU
The Guardian - AU
National
Natasha May

CSIRO recommends double-strength mouse baits after report finds dose used to protect crops ineffective

Mice scurry around stored grain on a farm near Tottenham, Australia.
Concerns by farmers that the recommended dose of bait was not effective in curtailing mouse numbers ‘were completely founded’, a CSIRO study has found. Photograph: Rick Rycroft/AP

The wrong chemical dosage has been used to protect crops against mice as they exhibit lower sensitivity to zinc phosphide than previously thought, new research shows.

Australia’s national science agency, the CSIRO, has recommended a new bait formulation that doubles the amount of zinc phosphide (ZnP) in grain baits used in broadscale agriculture.

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