AI-based weed spraying making its mark in Far North Queensland

By Ulicia raufers

AI-based weed spraying technology is being put to the test in Far North Queensland, with a recent trial in Cooktown demonstrating its effectiveness against the invasive sicklepod weed. Cooktown beef producers Peter and Judy Irwin participated in the trial through AgriFutures Australia’s Producer Technology Uptake Program on their ‘Valley View’ property, where they have been fighting sicklepod for 40 years.

Blue quad bike with tank strapped to front and sensor at back. Judy and Peter standing behind in farm clothes and hats.
Caption: Judy and Peter Irwin.

The Problem

Sicklepod is an aggressive weed that can completely eradicate pasture growth and reduce carrying capacity by up to 85%, rendering properties unproductive. Traditional methods of weed control have proven to be resource-intensive, costly, and often ineffective, with significant environmental impacts. For Peter and Judy, the battle against sicklepod has involved countless hours and considerable financial investment in spraying and handpicking, with limited success.

The Technology

InFarm’s AI-based weed spraying technology uses AI algorithms that have been trained to identify specific weeds, such as sicklepod, with exceptional accuracy. The AI is capable of distinguishing weeds from surrounding pasture and triggers targeted spraying on the weed, leaving the surrounding grass unharmed. This level of precision enables farmers to reduce herbicide use by up to 95%, lowering costs and minimising environmental impact while maintaining effective weed control.

Man in a green field standing on a blue quad bike pointing to the ground in front of him.
Caption: Dr Alex Olsen.

The Outcomes

On the Irwins’ property, the AI system was mounted on an ATV and captured thousands of images of the paddock, accurately differentiating weeds from pasture in real-time. The trial demonstrated that AI-driven weed control is highly effective, achieving nearly 100% accuracy in weed targeting. For Peter and Judy, this resulted in significant reductions in herbicide use and a more sustainable approach to land management.

InFarm is now looking to conduct further trials across the Cape York Peninsula, with the objective of developing AI models tailored to local weed species and continuing to enhance agricultural practices in the region.

The technology and trial results were also presented to local growers and landholders at the Cape York Weeds and Feral Animals Inc Innovation Field Day in Cooktown, providing them with valuable insights into this cutting-edge solution for weed control and chemical runoff.

To read more about this story, visit: https://agrifutures.com.au/news/ai-based-weed-spraying-making-its-mark-in-far-north-queensland/