The Agricultural Robots Actually in the Field
Farm robotics is furthest along in weed and pest control. Carbon Robotics builds the LaserWeeder, which the company reports is used by more than one hundred growers to kill weeds with lasers rather than chemicals. John Deere runs See & Spray, developed by its Blue River Technology unit, which uses cameras and machine learning to spray only detected weeds. Ecorobotix of Switzerland builds the ARA precision spot-sprayer.
Naio Technologies of France builds a family of autonomous weeding robots including Oz, Dino, and the vineyard robot Ted, and FarmWise, now part of Trimble Agriculture, builds mechanical weeding equipment. On the harvesting side, Agrobot, Tortuga AgTech, and FFRobotics lead, which is covered in the harvesting robots guide.
Grouping by task, not by brand, is the right way to read this market: a weeding robot and a harvester share almost nothing beyond operating in a field, and the maturity gap between them is large.
| Task | Named machines / makers | Maturity | What decides fit |
|---|---|---|---|
| Laser weeding | Carbon Robotics LaserWeeder | Commercial | Crop-and-weed discrimination |
| Spot spraying | John Deere See & Spray, Ecorobotix ARA | Commercial | Herbicide reduction achieved |
| Autonomous weeding | Naio Oz, Dino, Ted | Commercial, Europe | Row spacing and terrain |
| Harvesting | Agrobot, Tortuga AgTech, FFRobotics | Trials to early commercial | Crop and damage rate |
| Field data and scouting | Various drones and rovers | Established | Who acts on the data |
Why Weeding Leads and Harvesting Trails
The maturity split has a clear cause. Telling a crop plant from a weed is a tractable perception problem, and the payoff is a large cut in herbicide, so weeding and spraying robots reached commercial scale first. Selective harvesting of delicate produce is much harder, because identifying ripeness, reaching through foliage, and gripping without bruising are separate problems that compound.
The clearest weeding business case is often not labour at all; it is chemical reduction. See & Spray and Ecorobotix are sold largely on cutting herbicide volume, which cuts input cost and regulatory exposure, and that is covered in the weed control robots guide.
For the hardest end of the market, the named harvesting builders and their crop-specific machines are compared in the harvesting robots guide.
Judging Any Farm Robot Against the Season
Whatever the task, field robots share one constraint no factory faces: the work window is fixed by biology and weather and does not reopen. A machine down for a week during the window can cost the crop, so peak-season support response matters as much as capability in the brochure.
Ask for evidence from conditions resembling yours, the same crop, comparable soil, comparable slope, and the same growth stage, because a demonstration on a dry level plot proves little about a wet clay field in October. Where that evidence does not exist, treat the deployment as a trial.
Keep a manual or contract fallback for the first seasons rather than letting the crew relationships lapse, and model the benefit against a measured baseline using the robotics ROI guide. The International Federation of Robotics counts field robots as a distinct market with its own maturity curve.
- Match a named machine to your task before comparing brands.
- For weeding, quantify herbicide reduction as the main benefit.
- For harvesting, require damage-rate evidence on your crop.
- Confirm peak-season response time and regional spares.
- Keep a manual fallback for the first seasons.
Bottom Line
Agricultural robotics is commercial in weeding and spraying, led by Carbon Robotics, John Deere, Ecorobotix, and Naio, and developing in harvesting. Match a named machine to your task, then judge it against a fixed season.
Find the named machine for your task, then ask for evidence from conditions like yours before buying.
FAQs
What companies make agricultural robots?
Leading names include Carbon Robotics and John Deere (Blue River) and Ecorobotix for weeding and spraying, Naio Technologies for autonomous weeding, and Agrobot, Tortuga AgTech, and FFRobotics for harvesting.
Which farm robots are actually commercial today?
Weeding and spraying robots such as the Carbon Robotics LaserWeeder, John Deere See & Spray, Ecorobotix ARA, and Naio's Oz, Dino, and Ted are commercially deployed. Harvesting is mostly at trial or early-commercial stage.
Why is robotic weeding more advanced than harvesting?
Telling a crop from a weed is a tractable perception problem with a big chemical-saving payoff. Selective harvesting must identify ripeness, reach through foliage, and grip without bruising, which is far harder.
What should a farm verify before buying a robot?
Evidence from comparable crop, soil, slope, and growth stage, peak-season response time and regional spares, herbicide reduction for weeding or damage rate for harvesting, and a retained manual fallback.