Ag Drone Spraying in Polk County, Wisconsin for Corn, Beans and Hay

Ag drone spray pricing in Polk County, WI

Ag drone spraying in Polk County, WI is priced per acre for one pass, application only. The county's 1,066 farms average 225 acres and grow corn, soybeans and forage for dairy and turkey operations. The rates are set for that mix and for fields that sit between lakes, woodlots and the St. Croix bluffs.

Service	Typical rate	Notes
Corn and soybean herbicide	from $14/acre	Post-emerge, 2–3 gallons per acre
Corn and soybean fungicide	from $15/acre	Tassel and R3 timings
Alfalfa insecticide	from $14/acre	Weevil passes on first crop and regrowth
Cover crop seeding	from $15/acre	Into standing corn or soybeans
Frost seeding clover or alfalfa	from $15/acre	Late winter, onto thin stands

Product is billed separately, or the grower supplies it. Wisconsin drone rates run about $11–22 per acre, with $16 typical for 2026. Regional operators publish tiers of $16–18 with a $400 minimum. Our rates sit just under that median. The quote depends on water volume, crop height, field shape and slope, lake and wetland edges, power lines, and travel distance. Grouping fields lowers it. The minimum charge is $325 per visit.

Polk County farms in the 2022 Census

Measure	Polk County, WI
Farms / land in farms	1,066 farms / 239,493 acres
Market value of sales	$189.1M, 37th of 72 Wisconsin counties
Crops / livestock	44% / 56% of sales
Milk	$74.7M
Poultry and eggs	$14.8M, 9th in Wisconsin; 103,132 turkeys
Corn for grain / soybeans	53,295 / 37,381 acres
Hay and haylage / corn silage	33,272 / 8,869 acres
Irrigated land	2,006 acres

Only 2,006 acres are irrigated, so most Polk County crops are dryland and rain-fed. When it rains, it rains on everyone's fields at once. A wet July can leave dozens of farms waiting on the same few ground sprayers.

Ag drone spray jobs by crop in Polk County

1. Corn: post-emerge herbicide in June, then a fungicide decision at tassel. Late-season corn is the job where drones save the most, because there's no crop knocked down.
2. Soybeans: herbicide follow-ups on escapes and an R3 fungicide or insecticide when scouting justifies it.
3. Alfalfa and mixed hay: weevil control on first crop and regrowth, timed to the cutting schedule of dairy farms around Amery and Clear Lake.
4. Cover crops: cereal rye or oats flown into standing corn and soybeans, or onto 8,869 acres of silage ground right after chopping.
5. Frost seeding: clover or alfalfa broadcast onto thin hay stands in late winter, when freeze-thaw cycles work the seed in.

Why drones suit fields between Polk County lakes

Polk County holds 437 lakes covering about 20,900 acres, from Balsam Lake to the 1,189-acre Lake Wapogasset. Glacial hills leave many fields wrapped around wetlands, kettle ponds and woodlots, with odd corners a boom can't finish. A drone flies those shapes from a mapped boundary, shuts off at shoreline buffers, and works the day after a rain without rutting low spots. Fields too small or crooked for an airplane are routine drone jobs.

Alfalfa weevil timing on Polk County hay

UW Extension advises starting weevil scouting at 300 growing degree days (base 48°F), beginning on south-facing slopes and sandy knolls where larvae show up first. Thresholds:

Crop stage	Treat when
First crop, harvest more than 7 days away	40% of stems show feeding
Regrowth after cutting	50% of stems show feeding

When first crop is close to cutting, an early harvest often controls weevils better than a spray. When the cutting date is a week or more away, a drone pass protects the stand without wheel tracks across the regrowth.

Tar spot and corn fungicide decisions

Tar spot has been confirmed in 27–28 Wisconsin counties, including neighboring Barron and St. Croix. Polk County isn't on the confirmed list yet. Growers here should scout from July, especially fields bordering those counties. A fungicide decision between tassel and early grain fill depends on lesions on the ear leaf, the hybrid's tolerance, and the weather. At that height, a drone flies above the tassels and applies fungicide without driving through the field.

St. Croix Riverway, the Apple River and shoreline buffers

Polk County drains to the St. Croix, a National Scenic Riverway, through the Apple, Clam, Trade, Straight, Willow and Wood rivers. Interstate State Park at St. Croix Falls, Wisconsin's first state park (1900), and the western end of the Ice Age Trail sit on the riverway bluffs. Fields near lakes, streams and wetlands are flown with label setbacks, coarser droplets, and wind direction away from the water. Turkey barns and dairy yards get the same care, because barn air intakes and open feed bunks are sensitive to drift.

Airspace near Amery, Osceola and the Twin Cities

• Amery Municipal Airport and L.O. Simenstad Municipal Airport in Osceola see regular general aviation traffic. Fields near them need airport awareness.
• Twin Cities airspace: Minneapolis–St. Paul's Mode C veil reaches 30 nautical miles from the airport. Southwestern Polk County is close enough that operators check FAA airspace data before flying near Osceola and Dresser.

DATCP licensing and label rules in Wisconsin

Under DATCP's drone guidance, a for-hire operator needs:

1. FAA credentials: Part 107, a Part 137 certificate, and a Section 44807 exemption for drones over 55 pounds.
2. DATCP certification in a base category, such as 1.1 Field and Vegetable Crops, plus aerial category 9.9.
3. An annual Individual Commercial Applicator License.
4. A Pesticide Business License for the company.

A product whose label prohibits aerial application can't be applied by drone. That includes the 2026 over-the-top dicamba labels, which also restrict spraying above 85°F and ban it above 95°F. Wisconsin's FieldWatch registry lists sensitive crops and apiaries, and operators check it before every job.