Scott Arthaud grows wheat, corn, milo, sunflowers and sesame in the Oklahoma Panhandle, and herbicide-resistant weeds pushed him to Greeneye's retrofit targeted-spraying system because broadcast treatments at high rates were making his no-till system cost prohibitive.

His case illustrates the decision now facing many growers: precision spraying has moved from novelty to mainstream weed management, and the question is no longer whether the technology works but which delivery path fits a specific operation.

"Farmers understand this technology is here now," said Keith Crow, Greeneye Technology's general manager for North America. "The conversation is less about skepticism and more about how it fits their operation."

Three routes dominate the market: factory-installed systems such as John Deere's See & Spray Ultimate, retrofit kits like Greeneye's, and autonomous platforms led by Solinftec's Solix robot. Each carries different implications for capacity, labor and cost.

Start with crops and weeds

Crop compatibility narrows the options before price ever enters the conversation. Platform support continues to expand but still varies by crop, so growers should verify their crop mix is supported before investing.

"Weed pressure and resistance challenges are major factors in determining fit," Crow said. He advised evaluating crop compatibility, acreage, weed pressure and resistance concerns before comparing technologies.

For Arthaud, the payoff came in two forms: reduced herbicide use and access to chemistry he had avoided. "It enables us to spray more powerful mixes we wouldn't have normally tried," he said.

The shed matters as much as the software

For many farms, the deciding factor is the equipment already owned. Integrated and retrofit systems leverage the boom width and tank capacity of a conventional sprayer, while autonomous platforms run smaller booms and tanks but make repeated passes across a season.

Chase Sailer, who farms with his father and brother in southeast Illinois, chose a John Deere See & Spray Ultimate after years of relying on a local co-op. Managing more than 250 fields through a third party created timing problems.

"Being larger farmers, working on the weekends, and needing to work longer hours than what a co-op does" made bringing applications in-house attractive, Sailer said.

Data management sealed the decision. "The goal is to be fully self-sufficient," he said. "With John Deere Operations Center, I love the tracking of everything. Getting more data, clean data, [plus] it helps our billing and everything. It just works so much easier, hand in hand."

Arthaud went the other way. "We purchased the Greeneye system because we wanted to be able to have the dual tanks, with the broadcast line and Greeneye line separate," he said.

Robots take a different lane

Chris Carson raises corn and soybeans in northwest Illinois. In its first season on his farm, a Solix robot sprayed a 170-acre cornfield and two soybean fields totaling 110 acres. Corn results matched his traditional program.

"At harvesttime, we couldn't tell the difference whether we had sprayed it or the robot had sprayed it," Carson said.

Because the platform runs independently, sprayer compatibility never entered his calculation. The real advantage was labor. "There were times it could spray for a day or two and not have to manage it," he said.

Agronomics still govern

Factory and retrofit platforms suit operations covering large acreages within existing workflows, but the technology does not replace fundamentals.

"Targeted-spraying technologies still rely on strong agronomic fundamentals," said Josh Ladd, precision ag product manager with John Deere. "If we can't see the weed, the system's not going to be able to, either."

Crop canopy, residue and weed size all influence detection, Ladd said, which makes timely applications and effective residual herbicide programs essential.

Solinftec's approach inverts the model: patrol constantly and spray weeds small. "The goal of the technology is to spray early and often," said Taylor Wetli, U.S. commercial manager with Solinftec. "We want to be over that acreage every one to two weeks, spraying weeds as they're small, when they're easier to control."

Labor, refills and acreage limits

Autonomous platforms cut the need for a dedicated operator but are not labor free. Operators must still monitor performance and move machines between fields, which Carson called cumbersome. Acreage capacity remains his biggest constraint.

"If it could go faster and cover more acres, that's what I look forward to," he said.

Solinftec is addressing the labor gap with a solar-powered autonomous refill station that automatically reloads the robot with product. "If you still have to go to the field and refill the robot manually, you're not getting the full benefit of the technology," Wetli said. "The refill station is a really key piece of it."

Growers weighing a purchase this winter should confirm crop support for their rotation, calculate whether their sprayer's boom and tank suit a retrofit, and watch for wider rollout of Solinftec's refill station as autonomous capacity constraints ease.