Drone Spraying in Kendall County, TX for Pasture, Brush & Ranchland

Kendall County drone spraying rates

Drone spraying in Kendall County, TX is mostly ranch work: pasture weeds, mesquite and prickly pear, and brush regrowth on rocky Hill Country ground around Boerne, Comfort, Kendalia and Sisterdale. Rates below are per acre, application only, from FAA Part 137-certified operators licensed by the Texas Department of Agriculture.

Service	Typical rate	Notes
Annual broomweed and spring broadleaves	from $11/acre	Rosette to 6-inch stage
Improved pasture and hay meadow weeds	from $12/acre	Bermuda, KR bluestem, native grass
Mesquite leaf spray	from $16/acre	Late spring, full leaf
Prickly pear	from $18/acre	Higher rate and volume
Cedar and brush regrowth spot spraying	from $18/acre	Small sprouts after clearing

Herbicide is billed separately or supplied by you. The minimum charge is $200 per visit. Heavy brush, rocky slopes, tall live oaks and long drives on caliche roads raise the price. Texas A&M AgriLife's 2026 custom rate survey puts aerial brush spraying near $19 per acre statewide, and Texas drone operators quote about $8–$21 for standard work, so these rates sit at the competitive end.

Kendall County ranching by the numbers

The USDA 2022 Census of Agriculture counts 1,142 farms on 269,055 acres in Kendall County, averaging 236 acres. Farm sales were about $14 million, and most operations are small cow-calf, goat, sheep and wildlife properties rather than crop farms. Livestock accounts for the great majority of sales, with goats and sheep more common here than in most of Texas.

That shapes what agricultural drone spraying in Kendall County looks like. The typical job is a 40–300 acre ranch with pasture weeds in the open areas, mesquite and prickly pear creeping in, and juniper sprouts returning where cedar was cleared. Many owners also manage for wildlife or keep an agricultural or wildlife valuation, so documented brush and weed management matters.

Spring broadleaf control: timing is everything

Annual broomweed, bitterweed, horehound and Texas thistle respond best to herbicide while they are small and actively growing, usually from March into early May. Once they bolt, control drops and rates go up. Hill Country pastures often sit on shallow soil over limestone, and after a spring rain they green up fast, so the window can be short. A drone can be on the property within days of a call and covers rough, rocky ground that a pickup-mounted sprayer cannot drive safely.

Mesquite, prickly pear and cedar regrowth

• Mesquite: Texas A&M AgriLife ties leaf-spray success to plant condition. Treat when leaves are fully mature and dark green, typically 40–90 days after bud break, and when soil temperature at 12–18 inches is above about 75°F.
• Prickly pear: picloram-based treatments work slowly, often taking a year or more to show full results. Drones help on scattered clumps across rocky pastures.
• Ashe juniper (cedar): mature cedar is best removed mechanically, but small sprouts after clearing can be spot-treated before they grow back into a thicket.

Drones map brush patches from the air, then spray only those patches, which keeps herbicide costs down and protects the live oaks and shade trees ranchers want to keep.

Golden-cheeked warblers and the Old Tunnel bats

Kendall County lies within the breeding range of the endangered golden-cheeked warbler, which nests in mature juniper-oak woodland from about March through August. Brush control in that habitat should be planned with the season in mind, and broadcast spraying in mature juniper stands is best avoided during nesting. Old Tunnel State Park near Sisterdale hosts a large Mexican free-tailed bat colony from spring into fall. Operators keep insecticide work away from roost areas and fly mostly in the morning, well before evening emergence.

The Guadalupe River, Cibolo Creek and karst

Kendall County drains to the Guadalupe River and Cibolo Creek, and much of it sits on porous limestone over the Trinity Aquifer. Springs, sinkholes, stock tanks and creek crossings are mapped as no-spray zones, label setbacks from water are followed, and coarse-droplet nozzles keep spray on target. Fields along the Guadalupe with pecans, gardens or vineyards nearby need extra drift care for growth-regulator herbicides.

Hay meadows along the creeks

The deeper soils along the Guadalupe, Cibolo Creek and their tributaries carry most of Kendall County's coastal bermuda and klein grass hay. These meadows need a different program than rocky pasture: a late-winter pre-emergent for grassbur and annual grasses, broadleaf control after green-up and armyworm checks after each cutting from June on. A drone treats a fresh-cut meadow without driving over regrowth or windrows, and it can reach creek-bottom fields that stay too wet for a tractor after spring storms.

Kendall County spray calendar

Months	Main targets
February–March	Winter broadleaves, Texas thistle rosettes, hay pre-emergent
March–May	Annual broomweed, bitterweed, horehound
May–July	Mesquite leaf spray; prickly pear
June–August	Armyworms in hay; summer broadleaves
September–November	Fall broadleaf flush, cedar and brush sprout follow-up

Small acreage and weekend ranches

Growth around Boerne and along I-10 has divided many old ranches into 10–100 acre tracts. Owners want weed and brush control without hiring a large ground rig or a helicopter. A drone treats a 30-acre pasture in an hour or two, stays inside property lines and keeps spray away from homes, pools, gardens and neighboring horses. Grouping nearby small tracts on the same day keeps travel down.

Licensing and airspace

• FAA: Part 107 remote pilot certificate, Part 137 agricultural aircraft operator certificate and a Section 44807 exemption for drones over 55 lb. Military training areas around Joint Base San Antonio to the south are no-drone zones and are checked before every job near the county line.
• Texas Department of Agriculture: commercial applicator license with the General exam, the Aerial category and a second category such as Pasture and Rangeland.
• Regulated herbicides: Kendall County is not a TDA regulated-herbicide county, but labels, wind limits and drift rules still apply.

Ask for the operator's TDA license number before booking.