Weed-killing robot earns inventor top prize

James Avenell shows his Top Junior Bright Spark award at Datacom in Auckland. PHOTO: SUPPLIED
James Avenell shows his Top Junior Bright Spark award at Datacom in Auckland. PHOTO: SUPPLIED
Weeding out the competition, Alexandra Primary School pupil James Avenell (13) has been awarded Top Junior Bright Spark at the national competition for young inventors.

He has won the award for a weed spraying robot that automates a common gardening chore.

By taking photos and comparing them to a database of plants via its WiFi connection, the robot can learn to detect different species, and spray the weeds while avoiding other crops.

The young inventor travelled to Auckland with his father to meet other finalists before learning he had won. His cousin, Matthew Shepherd, of Napier, was also recognised, gaining a special award for originality for his "Scratch Pack" automated back scratcher.

James said his robot idea was inspired by working on the family farm.

"My dad and I shared the job of going through all our paddocks and taking out all the weeds with a thing called a grubber - a bit like an axe but with a flat piece that pulls them out of the ground."

The job was tiring, time consuming, and hard on the body, so he thought about finding a way to automate it.

"This design takes away the need for me to do this chore."

James was going to continue inventing and had many more ideas to explore: "I've been 3-D printing a drone for the last few days, so that's one thing."


Add a Comment



Our journalists are your neighbours

We are the South's eyes and ears in crucial council meetings, at court hearings, on the sidelines of sporting events and on the frontline of breaking news.

As our region faces uncharted waters in the wake of a global pandemic, Otago Daily Times continues to bring you local stories that matter.

We employ local journalists and photographers to tell your stories, as other outlets cut local coverage in favour of stories told out of Auckland, Wellington and Christchurch.

You can help us continue to bring you local news you can trust by becoming a supporter.

Become a Supporter