March 12, 2026

Bio Dunder Contractors Notch Up 40 Years In The Field

Jasmin Lewis

Customer Service & Logistics Supervisor, Wilmar AgServices

As they prepare for another fertilising season, veteran contractors Andrew Chetcuti and Peter Hackett reflect on the past 40 years in the Bio Dunder business.

Koumala grower Peter Hackett began carting dunder in 1985, with a single truck and a strong understanding of the sugar industry.

What started as a small operation has steadily grown alongside the development of the industry, and the increasing use and popularity of Bio Dunder as a precision-applied liquid fertiliser.

Over the years, Peter has witnessed many significant developments within the farming and fertilising sectors, such as upgrades at Wilmar’s Sarina Distillery and manufacturing plant, improvements in machinery and technology, and product development. What hasn’t changed is his approach to business and fertiliser application: To do the job well.

Fellow application contractor Andrew Chetcuti grew up in Mackay and first started carting dunder in 1985, working for his brother-in-law. After his third season, Andrew bought the truck and has been applying Bio Dunder throughout the Mackay and Sarina regions ever since.

Over the past four decades, and after applying thousands of cubes of dunder to local cane farms, Andrew has only needed to upgrade his truck once, crediting the longevity of his vehicle to looking after it well. As he puts it: “If you put a bit of money and a lot of love into them, they keep on going.”

Forty years on, the trucks are still rolling, the seasons keep coming, and the experience of fertiliser application contractors like Peter and Andrew continues to play an important role in supporting growers across the region.

Bio Dunder contractors Andrew Chetcuti (left) and Peter Hackett (right) have each been applying Bio Dunder liquid fertiliser to farms in the Mackay region for four decades.