Ag Drone Spraying in Hardin County, KY for Soybeans, Corn and Hay

Ag drone spraying prices in Hardin County

Ag drone spraying in Hardin County, KY is priced per acre, per pass, application only. Kentucky drone rates run $9–16 per acre with about $12 typical, while operators quoting in Hardin County list $13–30. The University of Kentucky's 2024 custom rates survey averages aerial application at $11.50. Our rates:

Service	Typical rate	Notes
Soybean fungicide and insecticide	from $12/acre	R3, stink bugs
Corn fungicide	from $12/acre	VT/R1
Wheat fungicide	from $12/acre	Head scab
Pasture and hay	from $13/acre	Poison hemlock, armyworm
Cover crop seeding	from $14/acre	Rye and wheat covers

Fields under 15 acres are billed as 15 acres. Product is billed separately. Quotes reflect acres per trip, sinkholes and tree lines and airspace near Fort Knox.

Soybeans, hay and corn

Crops made up 70% of Hardin County's $81 million in farm sales in the 2022 Census of Agriculture.

Crop or livestock	2022
Soybeans	35,603 acres
Forage (hay and haylage)	28,191 acres
Corn for grain	22,548 acres
Wheat	3,029 acres
Cattle	26,532 head

Of the county's 1,255 farms, 43% are 10–49 acres. Ag drone spraying in Hardin County covers soybean and corn fungicide, double-crop beans after wheat and the hay ground that nobody else talks about.

The sinkhole plain and Muldraugh Hill

Much of Hardin County is a low sinkhole plateau east of the Dripping Springs escarpment, with knobs to the east and Muldraugh Hill climbing toward the Highland Rim. Water from fields reaches groundwater fast through sinkholes.

Field condition	Ground sprayer	Spray drone
Sinkholes in crop fields	Hazard, missed spots	Mapped no-spray zones
Small fields between woods	Missed corners	Mapped edges
Wet bottoms after rain	Ruts	No soil contact
Corn at tassel	Crop damage	Flies above the canopy

Fort Knox airspace

Restricted area R-3704A covers the Fort Knox reservation from the surface to 10,000 feet, active from 6 a.m. to midnight and at other times by notice. Fields next to Radcliff, Vine Grove, Muldraugh and West Point sit close to it. In September 2026 the FAA also enlarged Godman Army Airfield's Class D surface area to a 4.6-mile radius. Operators check restricted and controlled airspace for every field and plan flights around it.

Corn and soybean disease

UK rated gray leaf spot risk high statewide in 2025, and southern rust usually arrives in mid-July. A single fungicide pass at VT/R1 gives corn the best return, with protection through R3 when southern rust pressure is high. Tar spot has been in Kentucky since 2021. In soybeans, frogeye leaf spot is the main fungicide target at R3.

Wheat scab and double-crop beans

• Wheat head scab: fungicide at Feekes 10.5.1, early flowering, with triazole products; avoid strobilurins, which can raise DON.
• Stink bugs: UK's threshold is about 2–4 per 10 sweeps from R3 to R6, and double-crop fields need the closest watching in September.
• Palmer amaranth and waterhemp: glyphosate-resistant populations are spread across Kentucky, so layered residuals come first and drones handle rescue passes.

Hay and pasture

Hay covers nearly as much ground as soybeans in Hardin County. Poison hemlock is sprayed with 2,4-D products as a rosette in early spring, before it flowers; it's toxic to cattle, so pastures are cleared before animals go back out. Fall armyworms are treated at 2–3 caterpillars per square foot from mid-August until frost, and cutting early can beat spraying when hay is close to harvest.

Growth around Elizabethtown and Glendale

Hardin County is growing, with new homes spreading around Elizabethtown, Radcliff and Vine Grove and new industry near Glendale. More fields now border yards, gardens, schools and small acreages. Operators map homes and gardens as no-spray zones, keep coarse droplets on downwind edges and fly only in light wind blowing away from houses. Small fields near town are often grouped into one trip.

Rolling Fork, Rough River and the Ohio

Rolling Fork forms the county's eastern border, the Ohio River sits at its northern tip, and Rough River Lake touches the west. Creeks, springs and wells are mapped before the first flight, and buffers are widened near streams that feed straight into the karst.

A Hardin County spray year

Window	Typical drone work
March to April	Poison hemlock, wheat weed control
May	Wheat fungicide at early flowering
June	Post-emerge herbicide in corn and soybeans
Mid-July	Corn fungicide at VT/R1
August	Soybean fungicide at R3
September	Stink bugs in double-crop beans, armyworm in hay
October	Cover crop seeding

Kentucky licensing and neighbors

The Kentucky Department of Agriculture (KDA) requires Category 11 (Aerial) for any drone pesticide application, including general-use products, paired with a site category such as 1A Agricultural Plant. Certification renews every three years with 12 hours of continuing education. Kentucky isn't part of FieldWatch, so operators ask about neighboring hives, gardens and sensitive crops before every job. The FAA requires Part 107, Part 137 and a Section 44807 exemption for drones over 55 pounds.