Crop Spraying in Trempealeau County, Wisconsin

Crop spraying rates in Trempealeau County

Crop spraying in Trempealeau County, WI by drone is billed per acre, application only. You buy the product through your co-op or agronomist, and a DATCP-licensed operator applies it at label rate, usually at 2–3 gallons per acre.

Service	Typical rate	Notes
Corn fungicide & insecticide	from $15/acre	tar spot, northern corn leaf blight
Soybean fungicide & aphid control	from $15/acre	white mold, soybean aphid
Herbicide passes	from $14/acre	broadcast or spot
Alfalfa & hay	from $15/acre	potato leafhopper, weevil
Cover crop & frost seeding	from $13/acre	rye after silage; clover into pasture

The western Wisconsin operator we reviewed charges $16–$18 per acre depending on job size, with a $400 job minimum. Iowa State's regional survey puts drone spraying near $12.50 per acre. Our starting rates sit between those figures. Price depends on acres per trip, carrier volume, slope, field shape, obstacles such as tree lines, farmsteads and power lines, and travel from Whitehall. Fields under 20 acres are usually billed at a 20-acre minimum.

Dairy, corn and forage

Trempealeau County is one of Wisconsin's leading dairy and livestock counties. The USDA 2022 Census counts 1,193 farms on about 296,700 acres, averaging 249 acres. Corn is the main crop, followed by soybeans at about 44,100 acres, hay and haylage at about 41,700 and corn silage at about 11,800. The county had about 56,000 cattle and calves and nearly 3.9 million broilers, and it ranks 15th of Wisconsin's 72 counties in farm sales.

Crop	Main drone jobs	Typical timing
Corn	Tar spot and leaf blight fungicide	VT–R2, late July–August
Soybeans	White mold fungicide; soybean aphid	R1–R3, July–August
Alfalfa	Potato leafhopper; alfalfa weevil	June–August
Corn silage ground	Winter rye seeding	Late August–September
Pasture	Frost seeding clover	March–April

Tar spot and white mold

Tar spot has become a regular threat in Wisconsin corn, and University of Wisconsin plant pathologists recommend scouting from mid-July and weighing a fungicide at tassel to early silking on susceptible hybrids. Cool, wet valleys in the county also favor white mold in soybeans. Both jobs come when crops are too tall or closed for ground rigs without crop damage.

Steep ridges and valley fields in Trempealeau County

Trempealeau County lies in the Driftless Area, which glaciers never flattened. Farms run along narrow valleys and over steep ridges, with contour strips, terraces and grass waterways to hold soil.

• Steep slopes are sprayed without the rollover risk of a ground rig.
• Contour strips are flown on a mapped route that follows each strip.
• Valley bottoms along the Trempealeau, Beef and Buffalo rivers are treated when wet.
• Woodlots and ridges are mapped as obstacles before every flight.

Cover crops and frost seeding

Corn silage leaves soil bare on steep fields, where erosion is a real risk. Seeding winter rye by drone into standing corn or right after silage harvest gets cover established before freeze-up. In early spring, frost seeding red clover into pasture and hay fields helps restore stands without tillage, and drones spread seed evenly across slopes that are hard to reach.

Mississippi River, trout streams and sand mines

The county borders the Mississippi River, with the Trempealeau National Wildlife Refuge and Perrot State Park in the southwest. Cold-water trout streams run through many valleys. Labels require buffers from water, and drones hold mapped buffers precisely.

Industrial sand mines and processing sites also dot parts of the county. Operators map conveyors, power lines and buildings around them before flying nearby fields.

Spray calendar for Trempealeau County

Months	Typical jobs
March–April	Frost seeding clover into pasture and hay
May–June	Burndown and post-emergence herbicide; alfalfa weevil
June–July	Potato leafhopper in alfalfa; post-emergence herbicide
Late July–August	Corn fungicide at tassel; soybean fungicide and aphids
Late August–September	Winter rye seeding into standing corn and after silage

Livestock farms and manure-fed fields

Many fields in the county receive dairy or poultry manure, which builds fertility but can also bring weed seed and heavy residue. Weeds that escape early herbicide passes are common in these fields, and a timely drone pass can clean them up without driving on soft, manured ground. Operators also keep buffers around barns, poultry houses and manure storage, and they note nearby wells and sinkholes as part of the flight plan.

Why Trempealeau County farmers use drones

• Safer on slopes than ground rigs on Driftless ridges.
• No wheel tracks in tall corn and closed soybean rows.
• Timely passes after rain, when valley fields are too wet.
• Small, irregular fields cost the same per acre as large ones.

Wisconsin licensing for drone spraying

The Wisconsin Department of Agriculture, Trade and Consumer Protection (DATCP) licenses pesticide applicators. A commercial applicator spraying for hire by drone needs certification in the agricultural field crops category (1.1) plus the aerial category (9.9), an annual individual license and a pesticide application business license. Farmers spraying their own land by drone need private applicator certification that includes the aerial category.

Federal rules require an FAA Part 107 remote pilot certificate, a Part 137 agricultural aircraft operator certificate and a Section 44807 exemption for drones over 55 pounds. If a label prohibits aerial application, the product cannot be applied by drone.

How booking works

1. Send the field location, crop, acres and target.
2. We match you with a DATCP-licensed, FAA Part 137-certified operator working in Trempealeau County.
3. You approve the per-acre quote and spray window.
4. The operator maps the field, applies and sends you the application record.

Communities we cover

Whitehall, Arcadia, Independence, Blair, Galesville, Osseo, Strum, Eleva, Ettrick, Pigeon Falls and Trempealeau, plus farms along the Buffalo, Jackson, Eau Claire, La Crosse and Winona county lines.