Drone Spraying in Harris County, TX for Pasture, Hay & Acreage

Harris County drone spraying prices

Drone spraying in Harris County, TX is quoted per acre for application only. FAA Part 137-certified operators licensed by the Texas Department of Agriculture charge the following typical rates for one pass on pasture, hay meadows, brushy acreage and nursery ground from Katy and Hockley to Crosby and Huffman.

Service	Typical rate	Notes
Pasture and hay broadleaf weed control	from $12/acre	Non-regulated products; see county rules below
Hay meadow pre-emergent	from $14/acre	Sandbur and annual grass prevention
Armyworm or stem maggot insecticide	from $13/acre	Bermuda hay between cuttings
Smutgrass and vasey grass control	from $15/acre	Bahia and bermuda pastures
Chinese tallow and brush	from $22/acre	Basal-sprout and seedling control, higher volume
Nursery, sod and specialty blocks	from $24/acre	Tight boundaries, slower flight

Products are billed separately or supplied by you. Jobs under 20 acres are billed as 20 acres. Prices rise with dense brush, power lines and fences that require hand-flown edges, residential neighbors that need extra buffers, and flights inside controlled airspace that need FAA authorization. Texas drone rates in 2026 run about $8–$21 per acre for standard work, with $12 typical statewide, so standard pasture work here sits at the low end and brush and nursery work prices to the extra effort.

Farming in the Houston metro: small tracts, lots of grass

Harris County is the most urban county in Texas, yet the USDA 2022 Census of Agriculture still counts 1,531 farms on 193,556 acres, averaging just 126 acres. Most farms are under 50 acres. Land in farms splits into about 95,000 acres of pasture, 74,000 acres of cropland and 17,000 acres of woodland, and farm sales reached $89 million, led by nursery, greenhouse and sod production rather than row crops.

For drone crop spraying in Harris County, that means many short jobs: a 25-acre horse pasture near Tomball, a 60-acre hay meadow off FM 529, a few acres of tallow regrowth behind a subdivision in Crosby. Ground rigs struggle with gates, fences and soft ground on these tracts, and airplanes cannot work this close to homes and airports.

Flying under Houston's airspace

Much of the county lies under Class B airspace for George Bush Intercontinental (IAH) and William P. Hobby (HOU), with Class D fields at Ellington (EFD) and David Wayne Hooks in Spring (DWH). A spray drone may only operate in controlled airspace with FAA authorization, obtained through LAANC or a waiver, and only at the approved altitude. Experienced operators check the field location against the airspace map when they quote, file the request in advance and coordinate the flight window. This is why scheduling a job inside the Beltway can take a day or two longer than a field near Waller or Huffman.

Regulated herbicide rules in Harris County

Harris County is one of the Texas counties where the Texas Department of Agriculture restricts regulated herbicides such as 2,4-D. Key points for landowners:

• High-volatile ester formulations of regulated herbicides are not allowed in the county.
• Other formulations must respect distance limits from susceptible crops such as vegetables, nurseries and gardens, and must be applied by a licensed applicator.
• Wind speed and direction limits apply, and records must be kept for every application.

Many pasture jobs here use aminopyralid, metsulfuron, triclopyr or other non-regulated options instead. Your operator should explain which products fit your weeds and your neighbors before quoting.

Chinese tallow on the coastal prairie

Chinese tallow is the most aggressive invader of Harris County pastures and old fields. It spreads by bird-carried seed, resprouts after mowing and can turn an open prairie into a thicket within a decade. Texas A&M AgriLife recommends treating seedlings and young sprouts with foliar herbicides while they are still short, and treating larger trees individually. A drone works well on dense seedling flushes across wet ground where a tractor would rut, and on scattered sprouts it can spot-treat mapped trees instead of blanketing the whole pasture.

Wet clay ground and short spray windows

The county's heavy clay "gumbo" soils hold water for days after a Gulf storm, and low pastures along Cypress Creek, Spring Creek and the San Jacinto River can stay soft for a week or more. Spring weed control and summer armyworm treatments often fall in exactly those weeks. A drone never touches the ground, so it keeps the application on schedule and leaves no ruts in hay meadows that will be cut and baled later.

Hay pests: fall armyworm and bermudagrass stem maggot

Bermuda hay producers in northwest Harris County deal with two recurring pests. Fall armyworms can strip a field in days; Texas A&M AgriLife suggests treatment when counts reach roughly three or more half-inch larvae per square foot. Bermudagrass stem maggot damages the top shoots of regrowth after cutting, causing a frosted, stunted look. Treatment targets adult flies about a week after cutting, followed by a second pass if pressure remains. A drone can treat a freshly cut meadow the day you spot the problem, without driving over regrowth.

A Harris County spray calendar

Months	Main targets
February–March	Hay meadow pre-emergent for sandbur and crabgrass; winter broadleaves such as buttercup and thistle
April–May	Spring broadleaves, dewberry and young tallow sprouts while leaves are fully out
June–August	Smutgrass and vasey grass; fall armyworm and stem maggot checks after each hay cutting
September–October	Fall broadleaf flush; tallow and brush regrowth before leaf drop

The long Gulf Coast season means weeds and pests can return two or three times a year, so many Harris County landowners plan a spring and a fall pass rather than a single treatment.

Wetlands, bayous and neighbors

Western Harris County borders the Katy Prairie, with conservation land, rice-era wetlands and the Addicks and Barker reservoirs. Bayous, detention ponds and stock tanks are everywhere. Operators honor label setbacks from water, map no-spray zones around ponds and homes, and use coarse-droplet nozzles with wind under about 10 mph. Near subdivisions, many landowners also notify neighbors a day before the flight as a courtesy.

Licensing for drone spraying in Texas

• FAA: Part 107 remote pilot certificate, Part 137 agricultural aircraft operator certificate and a Section 44807 exemption for drones over 55 lb, plus airspace authorization in controlled airspace.
• Texas Department of Agriculture: commercial applicator license requiring the General exam, the Aerial category and a second category matched to the work, such as Pasture and Rangeland.
• Insurance and records: proof of liability coverage on file with TDA and application records for every job.

Ask for the TDA license number and the FAA certificate before booking, and confirm the operator has handled airspace authorizations in the Houston area before.