Cotton covers approximately 10 million US acres across the Southeast, Texas and the Mid-South. Drone spraying has become essential for defoliant and boll-opener applications in September and October, when soft Delta soils stop ground rigs and neighboring soybean fields rule out airplanes due to drift concerns. Mississippi State Extension and the University of Arkansas report cotton growers in the Delta completing defoliant applications 5 to 10 days faster by drone than by waiting for ground to dry out for tractor-mounted sprayers. A two-drone crew commonly treats 400 to 600 acres of cotton defoliant per day. Mid-season applications also matter: tarnished plant bug, cotton aphid and bollworm pressure spike in July and August and drone applicators handle these jobs without the compaction that hurts mid-season cotton yield. Texas cotton, both in the Rolling Plains and South Texas, adds a separate use case: brush control on mesquite and cedar in pasture-adjacent cotton rotations, where drones reach zones ground rigs cannot. Per-acre rates on cotton run higher than row crops because defoliant applications often require complex tank mixes and precise coverage at low carrier volumes.
Typical rate: $14 to $20/acre
US acreage: 10M+ acres