This robot dog patrols greenhouses to protect plants

Knowing when something has gone wrong with a crop, from disease and pests to poor growth, can mean the difference between a successful harvest and a failed one. Reporting for BBC Tech Now, Paul Carter visits the University of Nottingham's Sutton Bonington campus to see how a robot dog is being used to patrol greenhouses, analysing plants and identifying issues before they spread.

This video is from Tech Now, the BBC's flagship technology programme.

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