Ag Drone Services in Grayson County, KY for Hay, Pasture and Grain

Ag drone service prices in Grayson County

Ag drone services in Grayson County, KY are priced per acre, per pass, application only. Kentucky drone rates run $9–16 per acre with about $12 typical, and operators within an hour of Leitchfield quote $14–22. The University of Kentucky's benchmark for custom drone work is about $15 per acre at 2 gallons per acre. Our rates:

Service	Typical rate	Notes
Corn and soybean fungicide	from $13/acre	VT/R1 corn, R3 beans
Row-crop herbicide	from $13/acre	Rescue passes
Hay insecticide	from $13/acre	Fall armyworm
Pasture and hay herbicide	from $14/acre	Poison hemlock, thistles
Seeding and spreading	from $16/acre	Cover crops, overseeding

Fields under 20 acres are billed as 20 acres. Product is billed separately. Ridgetop fields, woodlots and steep headwater slopes add flight time, which the quote shows up front.

Poultry, cattle and hay

Poultry is Grayson County's top commodity, at about $21 million in cash receipts, with beef cattle close behind at more than $19 million. The 2022 Census of Agriculture counted 1,283 farms on 232,159 acres and $82.7 million in sales.

Land use or crop	2022
Cropland	100,930 acres
Woodland	64,077 acres
Pasture	53,611 acres
Forage (hay and haylage)	37,922 acres
Soybeans	24,174 acres
Corn	13,589 acres
Cattle	43,200 head

Hay covers more ground than soybeans and corn combined, and nearly half the county is woodland. Ag drone services in Grayson County start with pasture and hayfields, then corn and soybean fungicide in summer.

Poison hemlock in pasture and hay

UK Extension advises treating poison hemlock with 2,4-D products in early spring while it's still a rosette. Hemlock is lethal to cattle at small amounts, about 0.2–0.5% of body weight, so it's one of the most important weeds to clear before animals go back on pasture or before hay is cut. If the rosette window is missed, mow before it flowers. Buttercup and thistles are treated in the same late-winter and early-spring window.

Fall armyworm in hayfields

UK's threshold for fall armyworm in pasture and hay is 2–3 caterpillars per square foot, with scouting from mid-August. Larvae under three-quarters of an inch are the easiest to kill. Some labeled products allow grazing the same day and cutting after 7 days. If hay is close to harvest, mowing is often better than spraying. A drone can treat a field the morning armyworms are found.

Corn and soybean disease

UK rated gray leaf spot risk high statewide in 2025. Southern rust usually arrives in mid-July and may need protection through R3, while a single fungicide pass at VT/R1 gives corn the best return. Tar spot has been in Kentucky since 2021. In soybeans, fungicide and stink bug passes are timed at R3. Small fields hemmed in by woods and ridges are where a drone saves the most time over a ground rig.

Fragipan soils and flat-topped ridges

Most of Grayson County sits on sandstone-capped ridges, with valleys cut 150–200 feet below and steep slopes at the heads of streams. Soils often have a fragipan, a dense layer that holds water near the surface.

Field condition	Tractor sprayer	Spray drone
Wet fragipan soils after rain	Ruts, stuck rigs	No soil contact
Steep headwater slopes	Rollover risk	Follows terrain
Small fields between woodlots	Missed corners	Mapped edges
Corn at tassel	Crop damage	Flies above the canopy

Rough River, Nolin Lake and beekeepers

Rough River Lake forms the county's northern edge and Nolin River Lake its southern edge, with sinkholes and sinking streams in the east. Grayson County also has an active beekeepers' association and poultry houses near many fields. Kentucky isn't part of FieldWatch, so operators ask about hives, gardens and sensitive crops before every job, map shorelines, streams and poultry houses as no-spray zones and use coarse droplets on downwind edges.

A Grayson County spray year

Window	Typical drone work
Late February to April	Poison hemlock, buttercup and thistle rosettes
May to June	Pasture broadleaves, row-crop herbicide
Mid-July	Corn fungicide at VT/R1
August	Soybean fungicide and stink bugs at R3
Mid-August to frost	Fall armyworm in hay
September to October	Cover crops and overseeding

Airport and airspace

Leitchfield-Grayson County Airport sits about 4 miles southeast of Leitchfield. Operators check airspace and any temporary flight restrictions for each field, especially for fields near the airport and toward Fort Knox to the northeast.

Kentucky licensing for drone application

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. Kentucky's farmer exemption covers ground equipment only. Certification renews every three years with 12 hours of continuing education. The FAA requires Part 107, Part 137 and a Section 44807 exemption for drones over 55 pounds.