Ag Drone Spraying in Preble County, Ohio for Corn, Soybeans and Wheat

Ag drone spray rates in Preble County, OH

Ag drone spraying in Preble County, OH is priced per acre for one pass, application only. Soybeans and corn cover about 170,000 acres of the county's 213,053 farm acres, and hogs and cattle add manure-fed ground and forage. The rates below are set for that mix, on fields from the Indiana line to the edge of Dayton.

Service	Typical rate	Notes
Corn and soybean herbicide	from $13/acre	Post-emerge, 2–3 gallons per acre
Corn fungicide	from $14/acre	Tassel to early grain fill
Soybean fungicide or insecticide	from $14/acre	R3 timing, frogeye and stink bugs
Wheat head scab fungicide	from $14/acre	Feekes 10.5.1
Cover crop seeding	from $15/acre	Into standing corn or soybeans

Product is billed separately, or the grower supplies it. Ohio drone rates are about $15 per acre typical for 2026, and OSU's custom rate survey put drone chemical application at $14.64. Nearby operators publish $13–30. The price depends on water volume, crop height, field shape, waterways and tree lines, power lines, and travel distance. Neighbors booking the same day lower it. The minimum charge is $275 per visit.

Preble County farm economy in numbers

Measure	Preble County, OH (2022 Census)
Farms / land in farms	1,044 farms / 213,053 acres
Average farm size	204 acres
Market value of sales	$260.1M, 18th in Ohio, up 78% since 2017
Crops / livestock	63% / 37%
Soybeans / corn for grain	90,493 / 79,889 acres
Wheat / forage	5,632 / 6,636 acres
Hogs	100,532 head, 6th in Ohio by sales
Cattle	20,425 head, 7th in Ohio by sales

With more than 100,000 hogs, many Preble County fields get manure, which shapes both weed pressure and cover crop programs. Grain still drives most of the aerial work. Fungicide and insecticide calls cluster in late July and August, when every farm needs the same few days.

How an ag drone spray job runs in Preble County

1. Scout and decide. The grower or crop adviser confirms the pest or disease, the growth stage, and the product.
2. Map the field. The operator marks boundaries, waterways, tree lines, wires, homes and any registered sensitive sites.
3. Mix and fly. The drone works at 8–15 feet above the canopy, 2–3 gallons per acre unless the label calls for more, and shuts off at mapped buffers.
4. Record. The grower gets product, rate, acres, time and weather in writing the same day.

Drones have no wheels, so tall corn, closed soybeans and wet spots are treated without lost rows or ruts.

Tar spot moving into southwest Ohio

Ohio confirmed tar spot in seven counties early in the 2026 season, including Darke County on Preble's northern border. The disease favors long dew periods, rain and humidity, and yield losses are highest when it builds before tasseling on susceptible hybrids. Preble County growers should scout ear leaves from July onward. A fungicide pass between tassel and early grain fill is where a drone pays off, because the corn is already 8–10 feet tall.

Frogeye leaf spot, head scab and resistant weeds

• Frogeye leaf spot: Ohio fields carry a mix of strobilurin-sensitive and strobilurin-resistant strains. OSU advises scouting the top third of the canopy, because losses can reach 35% when disease starts early in a wet season. Fungicides with more than one mode of action are the safer choice.
• Wheat head scab: OSU recommends a triazole at Feekes 10.5.1, when yellow anthers show, or up to four days later to cut scab and vomitoxin. Products rated "good" include Proline, Prosaro, Sphaerex and Miravis Ace.
• Waterhemp and Palmer amaranth: waterhemp is widespread in Ohio and spreads on equipment and water. Palmer arrives in hay, feed and equipment, and OSU urges fast removal. A drone spot pass on mapped escapes keeps a few plants from becoming a seed bank.

Cover crops and hog-manure ground

Flying cereal rye or oats into standing soybeans at leaf yellowing, or into corn before harvest, gets cover established weeks earlier than drilling after the combine. On hog-manure fields, a cover holds nitrogen and reduces erosion through winter. OSU's 2026 custom rate survey lists drone seeding at $15.64 per acre, and H2Ohio programs have run statewide since April 2024.

Twin Creek, Acton Lake and the buried valley aquifer

Preble County drains south and east to the Great Miami River through Twin Creek, Seven Mile Creek and Four Mile Creek, which puts it outside the Western Lake Erie Basin. Hueston Woods State Park covers 2,936 acres in Preble and Butler counties, including 625-acre Acton Lake and an old-growth beech-maple forest that has been a National Natural Landmark since 1967. Two small fingers of the Great Miami/Little Miami Buried Valley Sole Source Aquifer reach into western Preble County. Fields near creeks, the lake and the aquifer get label setbacks and wind direction planned away from water.

The county has eight covered bridges, including Roberts Bridge near Eaton, built in 1829. They are a reminder that many fields here sit beside small streams and road ditches, and those edges get mapped buffers.

Indiana line operators and Ohio licensing

Preble County borders Union and Wayne counties in Indiana, and several drone operators who work the area are based across the line. Applying pesticides in Ohio by drone requires an Ohio Department of Agriculture commercial applicator license with the aerial category. The ODA application asks whether the work is manned or unmanned, and a Part 137 certificate must be attached. Operators also need FAA Part 107 and, for drones over 55 pounds, a Section 44807 exemption. Ohio's Sensitive Crop Registry runs on FieldWatch, so operators check DriftWatch and BeeCheck before every Preble County job.

The 2026 over-the-top dicamba labels do not allow aerial application, so soybean drone programs use other labeled post products.

Airspace around Eaton

Preble County has no public-use airport. Richmond Municipal in Indiana is about 11 miles west of Eaton, and Dayton International, with Class C airspace, is about 24 miles east-northeast. Fields in eastern Preble County near Verona and West Alexandria are the most likely to need an FAA airspace check.