The rock you don't find at seeding
goes through your combine at harvest.
Nine depth cameras on Colin Rosengren's 84-foot air seeder map every rock while he seeds. Saskatchewan, since May 2026.
The challenge
A rock left in the field ends up in the combine: damaged concave, plugged feeder house, machine down with the crop standing.
Picking rocks isn't the hard part; finding them is. Meanwhile the seeder already covers every acre, while there's still time to act.
The solution
FarmDefender turns the seeding pass into the survey, logging position and depth for every rock above 6 cm.
The drill doesn't stop or slow down; it's a pass he was making anyway.
The rock you pick in May is the combine repair you don't pay for in September.
Harvest rock damage: parts, labor and downtime on the farm's most expensive machine. Picking that rock in spring costs a side-by-side and twenty minutes.
The map doesn't reduce the rocks in the field. It changes which season you deal with them in.
From seeding pass to picked rock
1 — Seed the field
Nothing changes about the pass. The cameras map every rock the bar crosses, in the background.
2 — Open the map on a phone
The map lands in FarmIQ. A compass arrow and live distance readout walk whoever's picking onto the next rock.
3 — Pick it before harvest
Mark it picked and it clears for everyone on the account. That rock never reaches the combine.
What deployed
FD-84D rock detection
Nine stereo depth cameras across an 84-foot bar. Every rock ≥6 cm detected and georeferenced at operating speed.
FarmIQ integration
Detections log to FarmIQ™ automatically. Rock maps accumulate season over season, so you learn which zones keep producing rocks.
No change to the operation
Mounts to the existing bar. One cable to the cab, no proprietary terminal, no second pass.
How does your operation handle rocks?
If it's crew time or finding out at harvest, we'll give you a straight number: mapping versus a rock through the combine.