Herbicide GUSS vs Thorvald
Two spraying machines, one verified table. Every figure below is sourced and dated; vendor claims are labelled and kept apart from independent results.
GUSS Automation's dedicated herbicide sprayer for orchards and vineyards — the same self-driving 4WD/4-wheel-steer platform as base GUSS, but built to spot-spray weeds in row middles instead of spraying the tree/vine canopy, using multiple onboard weed-detection sensors to target individual weeds rather than blanket-spraying. Diesel-powered (John Deere 4.5L 74 hp Stage V engine, no DEF) with a 600-gallon tank and adjustable 15-19 ft breakaway spray booms. Like the rest of the GUSS line it is sold and serviced only through John Deere dealers, confirmed only in the US and Australia, with no EU presence found.
Best for: Large commercial orchard and vineyard operations in the US or Australia (same footprint as base GUSS — almonds, walnuts, pistachios, citrus, stone fruit, wine grapes) wanting to cut herbicide use and weeding labour by autonomously spot-spraying individual weeds in row middles instead of blanket spraying or hand/mechanical weeding.Norwegian autonomous UV-C robot that replaces fungicide sprays for powdery mildew control — working at night in UK tabletop strawberries (used by 13 leading growers, around 20–30% of the national tabletop crop) and California vineyards, where over 150 Thorvald 3.0 units ran the 2025 season. Delivered as a service rather than a machine sale, with a vineyard-specific model launched for 2026.
Best for: Larger tabletop strawberry and wine-grape operations in Saga's service regions (UK, US) wanting to cut fungicide programmes without buying or operating robots themselves.| Herbicide GUSS Verified 2026-07-19 | Thorvald Verified 2026-07-17 | |
|---|---|---|
| Overview | ||
| Task | Spraying | Spraying |
| Autonomy | Fully autonomous | Fully autonomous |
| Country of origin | United States | Norway |
| Availability | Available now | Available now |
| EU market | Pending | CE-marked |
| Lead time | Not disclosed | Not disclosed |
| Last verified | 2026-07-19 | 2026-07-17 |
| Specifications | ||
| Power source | Diesel — John Deere 4.5L 74 hp Stage V engine, no DEF required (manufacturer brochure). A third-party directory instead describes a 3.8L Cummins engine; not confirmed by GUSS Automation, whose own current brochure states John Deere. | Battery-electric · 48 V Li-Ion 70 Ah (space for a second battery) · charges from a regular outlet |
| Required tractor power | Not applicable — self-propelled 4WD/4-wheel-steer platform, not a tractor implement | Not required (self-propelled modular platform) |
| Dimensions | 23 ft 6 in long x 6 ft 4 in tall x 8 ft 4 in transport width; 15-19 ft adjustable spray boom width (manufacturer brochure) | Modular platform; configuration-dependent, not disclosed |
| Weight | 12,460 lb (5,652 kg) empty — manufacturer brochure. (A third-party directory cites "5,652 lb", which is actually this same kg figure mislabeled as lb — a units error, not a genuine conflict.) | ~200 kg |
| Min farm size | Not disclosed as a number; manufacturer brochure markets the GUSS/Herbicide GUSS line at small, medium and large operation scales (its "small scale" case study is still a professional commercial grower, not a hobby farm) | Not disclosed |
| Productivity | 90-gallon fuel cell gives approximately 13-14 hour run time; one operator can monitor/supervise up to 8 GUSS/Herbicide GUSS machines at once; manufacturer case study cites refill downtime cut from a typical 45 minutes to about 3 minutes | Fleet-scale service: ~2,500 acres of US vineyard treated; ~20% of UK tabletop strawberry crop |
| Max speed | Not disclosed | Typically under 5 km/h in operation |
| Sensors | GPS + LiDAR + vehicle sensors for autonomous navigation (manufacturer states GPS alone is unreliable beneath tree canopy, hence the added sensor stack); multiple onboard precision weed-detection sensors trigger targeted spot-spraying instead of blanket application; GUSS Safety Vest disables drive mechanics when a nearby worker's vest is detected | Autonomous navigation stack; crop-counting cameras (up to 3 million crop counts per robot per night, vendor claim) |
| Price & model | ||
| Price (EUR) | Not disclosed | Not disclosed |
| Native price | Not disclosed | Not disclosed |
| Business model | Buy or pay-for-service, sold and serviced through GUSS Automation (Kingsburg, California — a wholly owned John Deere subsidiary since August 2025) and John Deere dealers, confirmed in the US and Australia. GUSS Automation publishes no unit price; a third-party ag-tech directory (unconfirmed by the manufacturer) cites an indicative $301,000-$400,000 depending on configuration. | UV-C treatment as a service — Saga deploys, operates and maintains robot fleets; growers pay for treatment rather than buying machines |
| Ongoing cost | Diesel fuel, tires, spray consumables (nozzles, pump wear parts) and scheduled maintenance through the GUSS Automation / John Deere dealer network; costs not published | Service fee (not published); no grower-side machine ownership |
| Key outcome | ||
| Best verified result | Herbicide application — spot-spray vs blanket application Multiple onboard weed-detection sensors trigger targeted spot-spray only where weeds are actually present · vendor | Fungicide use for powdery mildew −70–100% pesticide use (vendor claim) · vendor |
| EU context | ||
| CE marking | Not disclosed — no CE-marking evidence found; confirmed commercial deployment is US and Australia only | CE status not published; UV-C units carry light-exposure safety interlocks for night operation |
| Machinery Regulation | Not applicable — no evidence Herbicide GUSS has been placed on the EU market | Placed on the EU/UK market by Saga Robotics; Regulation (EU) 2023/1230 autonomous-machine provisions apply |
| CAP subsidy | Not applicable — no EU/CAP-linked deployment found | Large pesticide reduction supports EU pesticide-reduction and eco-scheme goals (service currently UK/US/NO, not EU-27) |
"—" means the manufacturer has not disclosed the figure; we never estimate silently. Model either machine's payback with your own numbers on its ROI calculator page.