Jefferson County, Wisconsin
Drone Spraying in Jefferson County, WI for Corn, Soybeans and Alfalfa
Trusted crop protection services for farms across Jefferson County and surrounding areas. Licensed applicators, modern equipment, and reliable scheduling.
Our Services in Jefferson County
Complete crop protection solutions tailored to local conditions in Wisconsin.
Herbicide Application
Targeted weed control for row crops and pastures across Jefferson County.
Insecticide Spraying
Seasonal pest management programs designed for Wisconsin growing cycles.
Fungicide Treatment
Preventive and curative treatments to protect yields in Jefferson County.
Custom Application Plans
Field-by-field recommendations for farms throughout Jefferson County, Wisconsin.
Verified operators near Jefferson County
Be the first verified operator in Jefferson County
Growers here are already requesting drone spraying. Operators with FAA Part 137 and a Wisconsin license get the first requests.
Drone spraying prices in Jefferson County
Drone spraying in Jefferson County, WI is billed per acre, per pass, application only. Wisconsin drone rates run about $11–22 per acre in 2026, with $16 typical, and one Wisconsin operator lists $16–18 with a $400 job minimum. For comparison, UW Extension's latest survey put ground fungicide application at $12.17. Our rates:
| Service | Typical rate | Notes |
|---|---|---|
| Alfalfa insecticide | from $13/acre | Potato leafhopper |
| Corn fungicide | from $14/acre | Tar spot, R1–R3 |
| Soybean fungicide | from $14/acre | White mold, R1–R3 |
| Rescue herbicide | from $14/acre | Where labeled for aerial use |
| Cover crop seeding | from $15/acre | Seed billed separately |
Each visit has a $250 minimum. Product is billed separately. Quotes reflect field size, wetlands, poultry barns and nurseries nearby, and the spray volume on the label.
Poultry, nurseries, dairy and grain
Jefferson County ranked seventh in Wisconsin for farm sales in the 2022 Census of Agriculture, at $469 million, with livestock and poultry 70% of the total.
| Product or crop | 2022 |
|---|---|
| Poultry and eggs | $174.5 million (1st in Wisconsin) |
| Milk | $78.8 million |
| Nursery, greenhouse and sod | $20.0 million (2nd in Wisconsin) |
| Corn for grain | 65,014 acres |
| Soybeans | 44,602 acres |
| Hay and haylage | 18,465 acres |
| Corn for silage | 9,825 acres |
Drone spraying in Jefferson County works around large poultry barns, nurseries and sod fields as much as corn and soybeans.
Tar spot and red crown rot
UW Extension's 2026 mid-season update rated tar spot risk high across Wisconsin, with the corn fungicide window running from tassel to about R3 and a single tassel-time pass mattering most; two modes of action are recommended. Red crown rot, a newer soybean disease, was first confirmed in Wisconsin in nearby Columbia County in 2025, so soybean scouting is getting closer attention.
Soybean white mold
White mold fungicide is preventive only and works best from R1 to R3; UW calls spraying as late as R4 risky. Fields in the Rock and Crawfish river lowlands, where fog and dew linger, tend to carry the most risk.
Resistant waterhemp
UW weed scientists confirmed glyphosate-resistant waterhemp in Jefferson County, and Wisconsin waterhemp also resists group 2 and group 14 herbicides. Layered residuals carry the program; drones help with rescue passes, where labels allow aerial use, when wet ground keeps rigs out.
Leafhoppers in alfalfa
UW thresholds run from 0.2 potato leafhoppers per sweep in 3-inch alfalfa up to 2 per sweep in alfalfa over 12 inches. UW advises against spraying stubble by default, and economic levels are rare after Labor Day.
Lake Koshkonong and the river lowlands
Lake Koshkonong covers 10,460 acres, mostly in the southwest of the county, with an average depth of only 6 feet. The Crawfish River joins the Rock River at the city of Jefferson, and wide marshes line both. Operators map the lake, rivers, marshes and drains as no-spray zones and use only products labeled for use near water.
Drumlins, Aztalan and the trail
Southern Wisconsin holds more than 5,000 drumlins, and Jefferson Marsh State Wildlife Area protects some east of Jefferson. Aztalan State Park on the Crawfish River preserves a Mississippian town from about 1050–1100 AD and is a National Historic Landmark. The 52-mile Glacial Drumlin State Trail passes Lake Mills, Jefferson, Helenville and Sullivan. Drumlins mean short, steep slopes; drones follow them without a rig on a side hill, and parks and trails are mapped as no-spray zones.
Barns, nurseries and registries
With nearly 4 million laying hens and the state's second-largest nursery and sod sector, many fields border barns, greenhouses and nursery stock. Operators map barns, air intakes, nurseries and homes as no-spray zones, check DATCP's DriftWatch and BeeCheck before every job, and fly only with wind blowing away from sensitive sites.
Family farms, irrigation and specialty acres
The 2022 census counted 955 farms in Jefferson County, 95% of them family farms, with an average of 201 acres; only 35 farms run 1,000 acres or more. About 8,844 acres are irrigated, and vegetable sales of $6.4 million rank 19th in Wisconsin. Irrigated vegetables, nursery stock and sod sit close to corn and soybeans, which is why each job starts with a registry check and a mapped boundary.
A Jefferson County spray season
| Window | Typical drone work |
|---|---|
| June | Rescue herbicide passes, leafhopper scouting |
| June to August | Leafhopper in alfalfa regrowth |
| July | Soybean white mold at R1–R3 |
| Late July to August | Corn fungicide for tar spot |
| September | Cover crops into standing crops and after silage |
Wisconsin licensing and airports
The Wisconsin Department of Agriculture, Trade and Consumer Protection (DATCP) requires commercial drone applicators to hold a base category such as 1.1 Field and Vegetable Crops plus 9.9 Aerial Application, an annual individual license and a pesticide business license. Watertown Municipal and Fort Atkinson Municipal airports sit inside the county, so operators check airspace nearby. The FAA requires Part 107, Part 137 and a Section 44807 exemption for drones of 55 pounds or more.
Service area
Farms around Jefferson, Fort Atkinson, Watertown, Lake Mills, Waterloo, Johnson Creek, Palmyra, Sullivan and Cambridge, plus fields within a 30-mile radius in Dodge, Dane, Rock, Walworth and Waukesha counties. Typical response: 36 hours.
What Jefferson County farmers say
Frequently asked questions
Who supplies the product?
You can supply it from your co-op or retailer, or the operator can source it and bill it separately.
How soon after rain can you fly?
Usually the same day, once leaves are dry enough for the product to stick.
What wind speed stops a flight?
Most labels and operators stop around 10 mph. Mornings and early evenings are usually calmest.
Can you spray near poultry barns?
Yes, with buffers. Fans and air intakes are mapped, and flights run only with wind blowing away from the barns.
How far ahead should I book fungicide?
Two to four weeks before tassel is best, since late July fills fast.
Do I need to be at the field?
Someone should review boundaries before the first flight. After that the crew works on its own.
What records do I get?
An application record with the date, product, rate, acres, weather and a flight map.