Pollination Robot: From Paintbrush to ABB Arms

Most crops get pollinated by insects for free, but some need a person with a brush, and a pollination robot is an attempt to take over that slow, repetitive job. This post starts with farmers who pollinated date palms, vanilla and pears by hand, then follows the research robots that tried to copy a bee. It looks at this September's news from Beijing, where a two-armed breeding robot pollinated tomato flowers in under ten seconds each, and at a new US orchard robotics center. Last, it asks where ABB robots could fit, from dual-arm YuMi to the IRB 4600 arms already handling produce trays.

A farmer pollinates onion flowers by hand in a seed field, 2025. Photo: Mahinur11 / Wikimedia Commons (CC BY-SA 4.0)

How growers pollinated crops by hand

Hand pollination is very old. Date palms grow as separate male and female trees, and farmers across the Middle East and North Africa have long tied sprigs of male flowers into the female clusters so that fewer male trees need to be grown. In northern Sudan, bundles of male date flowers have been sold at village markets for exactly that job. The method is simple: take pollen from one flower with a brush, a cotton swab or the flower itself, and put it on the stigma of another. What makes it costly is the number of flowers a farm has to visit, each one by hand and often from a ladder or a palm trunk.

A boy at a market in northern Sudan holds a bundle of male date palm flowers sold for hand pollination. Photo: David Haberlah / Wikimedia Commons (CC BY-SA 3.0)

Vanilla depends on hand work completely. French colonists brought vanilla to Réunion in the 1820s, but the plants set no pods because the insect that pollinates them in Mexico was missing. In 1841 a 12-year-old enslaved boy, Edmond Albius, found a quick way to pollinate each flower with a thin stick and his thumb, and vanilla grown outside Mexico is still pollinated that way. In Hanyuan County in China's Sichuan province, pear growers have pollinated by hand since the 1980s, partly because heavy insecticide spraying made local beekeepers unwilling to lend their hives.

Vanilla flowers, from a 1948 US Department of Agriculture bulletin on vanilla growing in Puerto Rico. Photo: Norman F. Childers / USDA via Wikimedia Commons (no known restrictions)

Most farms rely on bees instead, either wild ones or rented hives. Almond orchards in California bring in honeybee colonies every spring, and greenhouse tomato growers buy boxes of bumblebees. When bee colonies began failing in large numbers in the mid-2000s, engineers started asking whether machines could help. Harvard's RoboBee, a flying robot with a 3 cm wingspan, listed artificial pollination among its goals, though it relied on a thin tether for power. West Virginia University's BrambleBee was more practical: a wheeled Clearpath Husky with a Kinova JACO 2 arm that mapped a greenhouse and brushed bramble flowers one by one.

Rented beehives in a flowering almond orchard in Butte County, California, March 2025. Photo: Frank Schulenburg / Wikimedia Commons (CC BY-SA 4.0)

Pollination robots in 2026: breeding labs and orchards

The newest pollination robot was built for plant breeders. In September 2026 a team from the Chinese Academy of Sciences' Institute of Genetics and Developmental Biology showed GEAIR 2.0 at the China Beijing Seed Industry Conference. Its predecessor, described in the journal Cell in 2025, combined gene editing with a robot: the plants are edited to be male sterile with exposed stigmas, which makes them easier for a camera to find. The new version has two arms instead of one, and its accuracy at recognising the tiny stigma rose from 85 to 92.8 percent.

A scientist checks rice plants in a greenhouse at the IAEA plant breeding unit in Seibersdorf, Austria, 2000. Photo: IAEA Imagebank / Wikimedia Commons (CC BY-SA 2.0)

At the Beijing launch GEAIR 2.0 pollinated tomato flowers, holding a pollen tube in one hand and a brush in the other. Each flower took less than ten seconds, and one dip of the brush covered about 50 flowers, according to China Daily. In the US, Cornell University announced a four-year, $7.5 million USDA grant in September to set up a Center of Excellence for Orchard Robotics. Pollinating flowers is one of the jobs on its list, along with thinning, harvest and weeding. One grower in the project said labor has grown from about 45 percent of its costs to more than 60 percent in fifteen years.

A bumblebee at work in the Lufa Farms rooftop greenhouse in Montreal. Photo: Lufa Farms / Wikimedia Commons (CC BY-SA 2.0)

ABB does not make a pollination robot, and we found no ABB pollination project. Some of its robots match what these teams are building. The dual-arm YuMi IRB 14000 was built for delicate small-part work, the same two-handed style that GEAIR 2.0 uses. GoFa CRB 15000 has torque sensors in every joint and stops on contact, which matters in a greenhouse full of people. Downstream, ABB robots already handle the crop: at Orora Fresh Packaging in Kingsville, Canada, IRB 4600 arms stack the trays that carry fresh produce, as covered in our orchard robots post.

ABB's dual arm YuMi IRB 14000 handling test tubes beside a lab technician. Photo: ABB

What pollination robots still have to solve

Seed companies and breeding programs are the likely first buyers. A breeder crossing hundreds of lines needs exact control over which pollen lands on which flower, and that precise, repeatable work suits an arm with a camera. Greenhouses that grow tomatoes, peppers or strawberries come next, especially where bumblebees cannot be used. Open orchards are much harder, because the flowers sway in the wind and bloom all at once. For homes, the near future is smaller: indoor gardeners already pollinate tomatoes by shaking the flowers or using a small brush, and an indoor growing cabinet could one day add a tiny arm to do it.

A honeybee on an almond blossom in the Tashkent region of Uzbekistan, February 2026. Photo: 26D / Wikimedia Commons (CC BY-SA 4.0)

In factories and packhouses the path is clearer. An ABB arm such as the IRB 1200 or GoFa could load seed trays, move plants to a camera station or handle pollen samples in a breeding lab, all jobs with fixed positions that suit robots today. A research team could also mount a GoFa on a mobile base and try greenhouse pollination itself. That would be an experiment, since ABB has announced nothing of the kind. Engineers who want to try usually lay out the cell first in RobotStudio and check that the arm can reach every plant position.

ABB's GoFa cobot is guided by hand and stops when it senses contact. Photo: ABB

Speed and cost are the hard limits. A bee visits flowers all day for the price of a hive rental, while GEAIR 2.0 needs up to ten seconds per flower and a robot costs far more than a box of bumblebees. Greenhouse aisles are narrow and shared with workers, so any arm there has to be safe around people, and a farm that buys a pollination robot needs someone who can calibrate cameras and fix grippers in the middle of bloom. For now, pollination robots make the most sense where bees cannot reach, such as breeding labs and closed greenhouses.

An ABB IRB 4600 in the Orora Fresh Packaging cell that stacks produce trays in Kingsville, Canada. Photo: ABB

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