Ag Drone Spraying in Renville County, MN for Corn, Soybeans and Beets

Ag drone spray rates in Renville County, MN

Ag drone spraying in Renville County, MN is priced per acre for one pass, application only. Renville ranks first in Minnesota for grain and oilseed sales, and its farms average 672 acres of corn, soybeans, sugarbeets and sweet corn. Rates are set for that scale, on heavily tiled, flat ground where a wet week can park every sprayer in the county.

Service	Typical rate	Notes
Corn and soybean herbicide	from $12/acre	Post-emerge, 2–3 gallons per acre
Corn fungicide	from $13/acre	VT–R2, southern rust and leaf disease
Soybean fungicide or insecticide	from $13/acre	Aphid and R3 timings
Sugarbeet supplemental pass	from $14/acre	Wet-field gaps in a ground program
Cover crop seeding	from $11/acre	Into standing corn or after beets

Product is billed separately, or the grower supplies it. Minnesota drone rates run about $9–20 per acre, with $14 typical for 2026, and regional operators publish from $9–18. Our rates sit just under the typical figure. The quote depends on water volume, crop height, field shape, shelterbelts and power lines, and travel across a county nearly 1,000 square miles in size. There is a 40-acre billing minimum per visit.

Renville County farm numbers

Measure	Renville County, MN (2022 Census)
Farms / land in farms	931 farms / 626,065 acres
Average farm size	672 acres
Market value of sales	$810.3M, 4th in Minnesota, up 33%
Grains and oilseeds	$508.7M, 1st in Minnesota
Corn for grain / soybeans	271,325 / 221,215 acres
Sugarbeets	35,122 acres
Vegetables / sweet corn	25,545 / 16,588 acres
Hogs / turkeys / cattle	253,395 / 198,652 / 26,887 head

The directory pages list only corn, soybeans, wheat and hay, and they miss two crops that set Renville apart: 35,122 acres of sugarbeets and 16,588 acres of sweet corn. Southern Minnesota Beet Sugar Cooperative is based in the town of Renville. Its beet program and processor-contracted sweet corn put tight, non-negotiable timing on many fields.

Olivia, seed corn and research plots

Olivia has called itself the "Corn Capital of the World" since 1973, when the 50-foot ear-of-corn monument went up, and the Minnesota Senate has recognized the title. The town is home to nine seed research facilities, including a 44,000-square-foot corn breeding and research site built by Beck's and an 11-acre corn and soybean research station built in 2010–11. Seed fields and research plots need precise, strip-by-strip applications with no drift onto neighboring entries. A mapped drone flight handles that well.

Sugarbeets: where drones fit the Cercospora program

Northern Minnesota Cercospora leaf spot programs start just before or at row closure, from late June into early July. Sprays follow at intervals of 12 days or less, tightened to 9–10 days after storms. Triazoles stay in no more than half the applications, and tin products are limited to two per season. Ground guidance calls for 15–20 gallons per acre with medium droplets, well above typical drone volumes. Drones are a supplement, not a replacement. They keep the interval on fields too wet to enter, when the label and the cooperative's agronomists agree.

Ag drone spraying for southern rust in Renville County corn

In 2025, Minnesota Department of Agriculture staff found southern rust at five sites, including Renville County, first detected in late July. Tar spot turned up the same year in nearby Redwood County. Both can build quickly in a humid August. A fungicide decision between tassel and early grain fill depends on ear-leaf disease, hybrid ratings and the weather outlook. At that stage the corn is past 8 feet, and a drone treats it without running down rows.

Soybean aphid and resistant waterhemp

Minnesota's soybean aphid threshold is an average of 250 aphids per plant, with more than 80% of plants infested and populations rising, through R5. Waterhemp keeps getting harder to kill. UMN confirmed glufosinate-resistant waterhemp in Dodge County in 2026, where Liberty at 32 fl oz per acre gave only about 60% control, on top of resistance to several other herbicide groups. In Renville County's wide soybean fields, a drone can spot-treat mapped escapes along ditch banks and field edges before they seed in.

Ditches, tile and the Minnesota River

Renville County runs 119 public drainage systems, with 681 miles of open ditch and 1,297 miles of county tile. Judicial Ditch 15 alone covers 56 miles of ditch and 428 miles of tile. The Minnesota River forms the southwest border, Hawk Creek flows through the west end, and Beaver Creek and Chetomba Creek drain the center. Hawk Creek watershed projects target sediment, phosphorus and nitrogen moving to the Minnesota River.

Minnesota's buffer law requires 16.5 feet along public ditches and a 50-foot average, 30-foot minimum strip on public waters. Drone flight plans map these as no-spray edges. Operators also check DriftWatch and BeeCheck through FieldWatch before every job.

Sharing the sky with ag airplanes

Olivia Regional Airport has a 3,500-foot runway and a taxi-through hangar used for loading agricultural aircraft, and manned spray planes work Renville County every summer. No towered airport sits in the county. With airplanes and helicopters flying low over the same fields, drone operators coordinate with local aerial applicators, watch for low traffic, and stay well below manned-aircraft spray height.

Birch Coulee and Fort Ridgely

Birch Coulee Battlefield and part of Fort Ridgely State Park lie in Renville County, both tied to the 1862 US-Dakota War. Fields next to these historic sites, county parks and wildlife areas are flown with setbacks.

MDA and MnDOT licensing and 2026 dicamba

Drone applicators in Minnesota need an MDA license with Category A Core, Category B General Aerial and a site category such as C Field Crops. They also need MnDOT aircraft registration for each drone and a MnDOT commercial operation license with insurance before advertising. FAA requirements are Part 107, a Part 137 certificate, and a Section 44807 exemption for drones over 55 pounds. Renville County lies south of I-94, so over-the-top dicamba is cut off after June 12 in 2026. It is barred above 85°F, needs a 240-foot buffer, and cannot be applied by air.