Rice is grown on approximately 2.5 million US acres in Arkansas, California, Louisiana, Mississippi and Missouri. It is the single highest-density drone spray crop in America, because the flooded paddy conditions that define rice production make ground equipment impractical from flood-up through drain. Arkansas alone produces 1.2 million acres of rice and is effectively 100 percent aerial-treated for heading-stage fungicide. The University of Arkansas Extension reports 7 percent average yield improvement from fungicide applications timed at R4 to R6 for rice blast and sheath blight control. Drones have rapidly taken share from airplanes in rice over the past three years because they fly lower, produce less drift into sensitive neighboring soybeans and cover small odd-shaped levee fields where airplane turnarounds are inefficient. LSU AgCenter trials in Louisiana also show drone herbicide applications for barnyardgrass control matching ground-rig efficacy pre-flood. Operators serving the Arkansas and Mississippi rice market commonly run fleets of 3 to 8 DJI Agras T50 drones and treat 800 to 1,200 acres per day during the July and August peak heading window. Cal Poly research confirms similar performance for the California Sacramento Valley rice market, which runs a slightly later August and September calendar.
Typical rate: $14 to $22/acre
US acreage: 3M+ acres