Detection Dogs Track Weeds – Lantmännen Launches First-of-its-kind Project
12 September 2025, Sweden: Lantmännen has initiated a groundbreaking project to train search dogs to detect weeds that threaten seed production. The initiative, the first of its kind in Sweden, could pave the way for a more sustainable system for domestic forage seed production by reducing the need for herbicides and ensuring higher seed quality.
Weed infestations pose a major challenge for farmers. Because many weeds closely resemble cultivated plants, they are nearly impossible to identify—especially at an early stage. This can result in entire harvests being discarded, causing significant financial losses.
“This project has the potential to be a breakthrough that changes the way we handle difficult weeds in seed production. By harnessing the dogs’ extraordinary sense of smell to identify weeds early, we can reduce the use of herbicides while at the same time securing high quality seed,” says Linda Öhlund, Forage grass Breeder at Lantmännen.
The project compares the dogs’ detection capabilities with traditional methods. The long-term goal is to use dogs to identify weeds so they can be controlled precisely where needed. Over time, drones and AI may be integrated to make the method even more accurate.
Lantmännen sees strong potential in the pilot project.
“This is another important step in our efforts to make farming more sustainable and profitable. The goal is to deliver cleaner seed at a lower cost—a clear win for both farmers and the environment,” says Pär-Johan Lööf, R&D Manager Agriculture at Lantmännen R&D.
The project is being carried out in collaboration with the Sötåsen Agricultural School, the Swedish University of Agricultural Sciences (SLU), and Region Västra Götaland. It is funded by the Lantmännen Research Foundation and conducted at Lantmännen’s Future Farm in Svalöv.
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