From Best Buy Toy to Pro Spray Drone: A Father-Son Duo Takes Flight In Missouri Cattle Country

A cattle-raising family is going all-in on drone application technology, and a side hustle spinoff business is in the works after finding success spraying their own pasture land.

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(Rhett Keaton)

Iowa State University freshman Rhett Keaton and his father, Vance, are launching a drone spraying side hustle.

The father-son duo started out just having some fun several years ago, buzzing around the house with a $20 drone from Best Buy that “drove mom crazy”. But now, they are getting serious about turning entertainment to revenue.

Vance, who runs 5K Cattle Company out of Anderson, Mo., ran out and purchased a DJI Agras T20P spray drone this spring, and both Keatons secured the Part 107 Commercial Pilot Certificate needed to operate on a farm. Combined with the private pesticide applicator’s license 5K Cattle Co. already held, the guys can now apply restricted-use pesticides to their own pasture ground.

University of Missouri Extension experts recently weighed in on the promise of drone usage in farming, and more specifically, in cattle operations. Field specialist Caleb O’Neal likens the technologies’ versatility and practicality to that of a UTV.

“Back in the 1980s, it would have been rare to see a UTV being used on a farm,” he says. “Visiting farms today, I’m hard-pressed to find an operation larger than 20 acres that doesn’t have some type of UTV that they utilize on a regular basis.”

And while the Keaton’s are banking on custom application services with a spray drone as their next play in ag, you don’t have to spray crops or weeds to use drones for the benefit of your farm or ranch, according to O’Neal.

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Use of drones in agriculture is increasing as row crop and livestock producers find new ways to improve efficiency and productivity.
(Photo courtesy of Caleb O’Neal.)

“Livestock producers can monitor fences and availability of water and can make sure animals are where they should be without even opening a gate,” O’Neal explains. “Drone technology lets cattlemen quickly check estrus indication patches for optimized breeding timing, monitor cows during calving season, look for hidden newborn calves and look out for potential predators.

Getting back to the Keatons, the next step is for Rhett, who is majoring in ag systems technology in Ames this fall, to secure his Missouri commercial pesticide applicators license.

Once that happens, the pair can start marketing drone spraying services to neighboring farms. Their plan is to start locally with pasture and grassland applications before seeking out work on row crop farms to the north once foliar fungicide season hits.


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Even though the T20P is one of the smaller spray drones offered by DJI, Keaton says it’s proven to be the perfect fit so far. He also rents a neighbor’s spray drone, paying a per-acre fee, when he needs more than one bird to cover more ground.

“We do a lot of flying in and out of trees and stuff like that,” Keaton says. “Having that smaller drone with less capacity and a more efficient battery, I get about double the battery life as [the bigger drones] do. But I also have about half the tank.”

The reservoir on the T20P holds about 5.5 to 6 gallons of tank mix, so Keaton will usually need to land and refill his tank after about five or six minutes of spraying. He averages 23 acres per hour when everything is set up for a quick land-refill-takeoff cycle.


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Keaton says Corteva’s DuraCor herbicide, an aerial application-approved formulation containing two Group 4 AIs, is the main product he’s been spraying from the drone thus far. The product label calls for 2 to 3 gallons of active ingredients (mixed with carrier water) applied per acre with coarse droplets.

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A fellow rancher kicks the tires on Vance and Rhett Kaiser’s spray drone trailer at a field day event. The Kaisers operate 5K Cattle Company out of Anderson, Mo., and have plans to launch a spray drone custom application business in the near future.
(Rhett Keaton )

Keaton and Vance also picked up a nicely appointed spray drone trailer off — of all places — Facebook Marketplace. The whole setup – drone, trailer, extra batteries, etc. – cost about $30,000 all-in, Keaton says.

“We found one that was cheaper to buy than it was to build our own, especially with the generator — that is probably the most expensive part of that trailer,” he explains. “It already had the generator, pumps, the mix tanks and a thousand-gallon freshwater tank, and everything was lined up.”

With the spray drone in the air and the nice, shiny trailer parked edge-of-field as Keaton makes his passes, cleaning up weed escapes in fields that he says are “pretty clean” already, neighboring farmers often take notice and stop by to ask if he and his dad can come by and spray some of their ground, too. Their plan is to find the sweet spot between a $12 to $20 per acre fee to charge for their drone spraying services.

Speaking of sweet spots, O’Neal feels that spot spraying, guided by aerial imagery or even first-hand producer knowledge of where weed problems are significant and need to be addressed, is a good target for drone service providers like the Keatons.

“A pasture with a rash of blackberry weeds in isolated areas has great potential for a prescription herbicide application where only the problematic areas receive treatment via a spray drone, as opposed to a broadcast application where the entirety of the field is treated whether it needs it or not,” he says.

“I think there’s a lot of opportunity [for it] around us. There’s a lot of guys with hay fields, and they do a lot of burn down applications. That’s one thing we are planning on hitting on,” Keaton says. “I think some guys would be interested in that. Especially if we have a wet spring and guys can’t get in the field.”

Missouri Extension field specialist O’Neal agrees with that assertion.

“In my neck of the woods in southwestern Missouri, the topography can be quite unforgiving, with some areas too harsh to allow access by ground spray rig or even an ATV,” O’Neal says. “With an aerial piece of equipment like a utility drone, landowners can now get herbicide applications on these problematic areas and put them into useful forage production.”

With a pilot year of flying his family’s acres fastened securely under his belt, Keaton says the arrow looks to be pointing up on spray drone technology in agriculture.

“Hopefully we can expand and get maybe another trailer or a bigger drone, it just depends kind of on what’s calling for us,” he says. “I’ve got to see exactly how much work is out there in this business and from there just make it all work out. Our foot is just in the door [right now].”

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What’s New With Agriculture Drones?

Drone and Smart Sprayer Combo Targets, Brings The Boom Down On Weeds

High Capacity Spray Drone Lands With Midwest Aerial Application Firm

Helpful Tips For Using Adjuvants In Spray Drones

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