Drone Spraying in Iroquois County, IL for Corn and Soybean Fields

Drone spraying prices in Iroquois County

Drone spraying in Iroquois County, IL is billed per acre, per pass, application only. Illinois drone rates run about $10–18 per acre in 2026, with $13 typical, and operators working the county list $12–13. Our rates:

Service	Typical rate	Notes
Corn fungicide	from $12/acre	Tar spot, southern rust, VT–R3
Soybean fungicide or insecticide	from $12/acre	R3
Post-emerge herbicide	from $13/acre	Where labeled for aerial use
Cover crop seeding	from $13/acre	Seed billed separately

Each visit has a $250 minimum. Product is billed separately. Quotes reflect acres per trip, drive time across a large county, tree lines and the spray volume on the label, usually 2–3 gallons per acre.

The top grain county in the country

Iroquois County ranked first in Illinois, and first in the U.S., for grain and oilseed sales in the 2022 Census of Agriculture. Total sales rose 84% to $772 million, 83% from crops.

Crop or livestock	2022
Corn for grain	302,965 acres
Soybeans	294,879 acres
Forage	5,273 acres
Wheat	4,267 acres
Hogs	97,352 head
Cattle	14,276 head

The county covers about 1,117 square miles, third-largest in Illinois by land area. With 195 farms over 1,000 acres, drone spraying in Iroquois County is about covering big acreage fast in short fungicide windows.

Tar spot and southern rust

Tar spot is established in northern Illinois, favored by cool, humid weather and long leaf wetness, and it can cut yields by up to 50 bushels in susceptible hybrids. Southern rust was first reported in Illinois for 2026 on July 23. University of Illinois guidance for both is a multi-mode fungicide between VT and R3. A drone covers tasseled corn without a high-clearance rig, which helps when rain and a busy custom calendar squeeze the window.

Glufosinate-resistant waterhemp

In January 2026, University of Illinois scientists confirmed glufosinate-resistant waterhemp in Illinois, with about 20% of plants surviving a full rate in the field. Waterhemp now resists every post-emergence herbicide once used against it in Illinois corn and soybeans. The advice is full rates, proper carrier volume and tank mixes such as glufosinate plus 2,4-D choline where labels allow. Drones help with rescue passes on labeled products when rain keeps ground rigs out.

Dicamba: what drones don't do

Over-the-top dicamba labels prohibit aerial application, so drones don't apply it. Illinois adds its own 2026 rules for ground applicators: no applications after June 20, none above 85°F, a 240-foot downwind buffer and a FieldWatch check. Drone crews spraying other products near dicamba-sensitive fields use coarse droplets and mapped buffers.

Sand country and nurseries

Northeastern Iroquois County is sand country. The Iroquois County State Wildlife Area covers about 2,480 acres of dunes, oak savanna and wetlands near Beaverville, including Hooper Branch Savanna, the largest oak savanna tract left in Illinois. Onarga calls itself the Nursery Capital of the Midwest, with tree and shrub nurseries on sandy ground. Operators map nurseries, nature preserves and homes as no-spray zones and check DriftWatch and BeeCheck before every job.

Cover crops and insurance savings

Illinois' Fall Covers for Spring Savings program offers up to $5 per acre off the next year's crop insurance premium for certified cover crops, with applications in winter. Drones can seed cereal rye into standing soybeans or corn in late August and September, so the rye is up by harvest without a trip across wet ground.

Field conditions

Field condition	Ground sprayer	Spray drone
Black prairie soil after rain	Ruts, compaction	No soil contact
Corn at tassel	Crop damage	Flies above the canopy
Sandy fields in the northeast	Normal access	No ruts in soft sand
Soybeans at R3	Wheel-track losses	No crop contact

Soybean passes at R3

Frogeye leaf spot and white mold are the usual soybean fungicide targets in wet summers, and stink bugs and Japanese beetles are scouted from pod set. An R3 pass that combines fungicide and insecticide where needed saves a trip, and a drone does it without wheel tracks through the rows.

Hog barns and manure-fed fields

With nearly 100,000 hogs, many Iroquois County corn fields get manure, and nitrogen supply varies field to field. When a wet June leaves corn short, a drone can top-dress liquid or dry nitrogen without driving on soft ground. Hog barns and homes are mapped as no-spray zones for every pesticide job.

An Iroquois County spray season

Window	Typical drone work
May to June	Rescue herbicide passes
Mid-July to early August	Corn fungicide at VT–R3
August	Soybean fungicide and insecticide at R3
Late August to September	Cereal rye into standing crops

Illinois licensing for drone application

The Illinois Department of Agriculture (IDOA) requires commercial drone applicators to pass the Aerial General Standards exam plus a category such as Field Crops, and to file proof of insurance for for-hire work. The FAA requires Part 107, Part 137 and a Section 44807 exemption for drones of 55 pounds or more. Drift complaints go to IDOA within 30 days, which is one more reason operators keep detailed flight records.